Hi, Welcome to HCM. I have read your description and understand your concern. The problem you are having with erection is mainly due to associated psychological factors than physical one. Dute medication what you are taking for hair loss contains dutasteride, which could also be associated with poor erection as it could cause side effects like decreased libido (sex drive). You can overcome the problem by doing the following. 1. Kindly practice pause and squeeze technique, which over a period of time helps you to sustain erection for a longer duration. 2. Take Tablet.Tadalafil 30 minutes before intercourse to get good erection. 3. You need to overcome fear or anxiety by doing meditation regularly to keep your mind calm. 4. Include in your diet - almonds, banana, pineapple, saffron, cardamom, figs, honey and pumpkin, which are known to increase the blood flow to the penis and help to initiate and sustain erection. 5. In case you have increased sensation of the penis, use of topical anaesthetic creams and sprays that contain a numbing agents, such as lidocaine or prilocaine will help. Once you regain your confidence, you should be able to gain good erection gradually and perform better. Later, you may decrease taking medications or take only when it is absolutely necessary. Hope the information provided would be helpful. All the best.