I Masterbated 2-3 Times Per Day Starting At About 8yo

I masterbated 2-3 times per day starting at about 8yo and did not stop till mid teens, i have changed the shape of my penis as well. I am in my 40s, have had many sexual relationships but have not come close to marriege.. but I am thinking about it now and would like to have children,
1. could my past activities cause changes to my sperm to cause me to be impotent, since I did not let my sperm developed when I was young??