I agree with everybody. Stress, anxiety and a racing mind can effect your ability to have an erection. You can have a disconnect between your mind and penis. I am really horny , but for some reason my penis hasn't got the message . This happens to women too. Medication, diet can effect your mental state when it comes to erection. Sometimes when my heart is beating fast from excitement, it effects my erection . My heart is beating fast and my mind is racing. Then I become worried about getting it up. Like a domino effect. Sometimes I worry about not being able to get it in because of the kink. Helps to have an understanding woman that helps you relax. Mine is sometimes not helpful at all. Other times she is understanding. 99% of the time I have no problems. She doesn't seem to remember those times.
Peyrones can cause a lot of doubt. Doubt can cause stress and anxiety which can lead to no erection or a softer erection. Many of us are trying different methods to improve peyrones. These methods can cause erection problems. Not everyone is effected the same way. We are taking pills to improve our circulation. Get more blood to the penis. These pills also effect the mind. Can speed up your thoughts. Can also speed up your heart rate. Leading to a brain disconnect from your penis.
Many don't know that you have a lot of nerves between your anus and testicles. This is called the Perennial area. Sends signals to your brain like when you need to urinate etc I believe this area can effect your erections. Signals disrupted by medications or damage. There are forums about this subject. People who have damaged their Perennial area.
Getting a boner can be a lot more complicated than we think. Really important to be relaxed and focused