Shaft will get hard but no the head

have you ever had a full erection ?
i suppose it's yes but just for the people that might have an answer.

 

Might be desensitization because of porn. The longer you stay away from it and stop masterbating, the harder your erections will generally be.

 

This is called „Soft glans syndrome”

 

I don’t know. This is a physical injury, you should visit a urologist and do some research. I found this on reddit:

General penis injuries: https://www.reddit.com/r/gettingbig...urce=share&utm_medium=ios_app&utm_name=iossmf

Informations to cure soft glans syndrome:
https://www.reddit.com/r/gettingbig...urce=share&utm_medium=ios_app&utm_name=iossmf