Dear service user, Thanks for writing to Healthcaremagic. I understand your concern about erection quality, premature ejaculation and penis shape. It is almost nil possibility of physical illness causing poor erection at your age. Insufficient erections are most commonly due to psychological factors. The commonest is anxiety about own performance/ erection. An occasional episode of erectile failure due to functional or situational reasons like fatigue, tension or own pressure to perform rather to enjoy is very common. This diminishes arousal level and hence erection too. This failure of erection makes one feel I should perform best and he tries to erect’. This in turn further leads to loosening of erection. For constant erection, continuous exciting/romantic/erotic feelings should be there in mind. If the mind is diverted to concern about erection or ejaculation during sex or masturbation, one will lose erection. One can gain ejaculatory control over a period of time by practicing behavior methods as below, 1. Stop-start technique of behavior therapy. 2. Medicines like Fluoxetine 20 mg day or Paroxetine CR 25 mg per day. (To be taken under medical supervision only) 3. Kegel exercise. (As if try to hold urine intermittently during voiding, you can search on internet and read in detail) 4. Penile squeeze technique applied at the point of ejaculatory inevitability. 5. Applying a local anesthetic ointment to glans penis. Just enjoy kindling during masturbation without bothering about quality of erection or early ejaculation. Practice it regularly. No need to take medicines. The problems you described are common during early sex life, one can master these difficulties as time passes. Relax and go ahead. Wish you good sexual health ahead.