Suggest Treatment For Problem In Getting Erection

Question: I'm at a complete loss. The first night I tried to have sex with my wife I could not get an erection. It is a love marriage. Before there was lot of fight between us and tension between us due to family restriction. Finally we somehow managed to get married. It is almost 1.5 years of our marriage.
Initially I have ignored it. But after some time I realized that it is a problem. I have lot of interest in sex before marriage and after marriage too. Before marriage I had never sex with any one.
I was used to masturbate before marriage .But after marriage I do not know the reason but I do not find myself interested towards my wife for sex, But for others I find myself interested .Although I lost my confidence for erection .Before marriage I was very much interested for sex with my girlfriend (now my wife).
I can remember that during masturbation before and after marriage I hardly get full erection.
I went to a sexologist last year; he gave me some medicine for hormone and told me that no physical weakness, I observed no improvement in my sexual health. After check up I tried for sex several time but was partially successful, got partial erection.
This whole thing is destroying my personal and married life.

Some more detail about me are here :-

Gender –Male
Address- XXXX
Any Diseases:- I think no.Only some stomach digestion problem.One more point is that my testicles are bigger. and loose.
Any Specific Tension – On any topic/point I came under stress and take tension. It is my habit from childhood. During college I also used to take stress about my study and career. After joining the job this situation got worst for me.
Drug Addiction/Smoking-I never took any drug or smoking.
Marital Status- i am married from 09/12/2012
Pre marital sex history-I never had pre marital sex with anyone.
Extra marital sex history – No never.
Masturbation-Yes I am used to masturbate from class 7 (1998). On average I masturbate one time daily. After marriage I tried lot to stop it but was unsuccessful. Still I masturbate average one time per two day,sometimes daily.Please make note that before marriage I used to masturbate by thinking about my GF(now my wife),but now I hardly think about her during masturbation. I never got full erection during masturbation.
Nightfall:-I never suffered from nightfall
Job Profile:-I am a software engineer working in a Japanese MNC in XXXXXXX I am working in java development profile. There is always work stress in this job profile.
Exercise: I do exercise occasionally ,never did any heavy exercise in my life. I never went to Gym.
How did you experincethe problem the problem the first time?- During my first night with my wife after my marriage in December 2012.
Do you get erection in the morning when you wake up? –Yes I usually got, but not every day.
Do you get erection while sleeping at night? - Yes I usually got, but not every night.
Are you able to attain and sustain hard erection while doing masturbation? – I masturbate but never get full erection .If sometimes erection comes then it may not sustain always. After masturbation I feel weakness and desire to sleep. Sometimes I masturbate in the same bed with my wife sleeping on other side of bed in mid nights. I am unable to stop myself from doing this.
Are you able to attain and sustain hard erection while watching or talking erotic stuff? –During early my student life I got erection very frequently even in the class room by looking at girls or thinking such things. Earlier while watching porn I got hard erection but now it is the thing that may occur or may not for me. But sometimes I do not know exactly when , I got hard erection .In my before marriage life I was always dreaming that my wife or GF will suck my penis. After marriage this was the only thing which I used to enjoy with hard erection for some months .But now I hardly feel any excitement when I say her to suck.
How much is the frequency of having sex? – I am not interested for sex with my wife. I hardly feel any excitement when she comes near to me. I feel it very insulting for me .Now she knows all things so she also hardly tried for sex. I think she is ok problem is with me.
How much time do you spend in foreplays? – I hardly foreplay because I do not find any excitement for her .I just try to sex with her so that she will feel happiness with my partial erection. Now I feel feared while trying to insert penis inside her. We both are virgin till now.
Do you sometimes get ejaculated while foreplays? – I never ejaculated while foreplay. But yes the erections got from foreplay disappear while inserting into her.
How much time do you take to get ejaculated while doing masturbation? –Some time it takes time some time very rapidly within a minute with very less erection. Yes when I thought of a new girl then I get relatively good erection while masturbating
How much time do you take to get ejaculated while doing sex?-During sex between 2 minutes to 7 minutes on average.
Are you using condom, if yes then do you start losing erection while putting on the condom? – Yes sometimes. Yes I felt this many time that I lost erection while putting on the condom.
I hate my wife’s body therefore I do not find myself excited towards her. She is very beautiful and sexy .During before marriage I got too much excitement just touching her .I does not know the exact reasons but now I see everything with a possible cause. One thing I came to notice about me that I will not get complete hard erection.

Please help me out ,where should I go for reliable treatment in XXXXXXX ?

Hi,

I went through scales .For XXXXXXX score was - 40 .

Did you check my attached report ?Any scope of improvement ?

Please suggest what to do next ?

what is the sex therapy ,how will it be done online and help me and what is its cost ?

please explain .
Regards,
XXXX