Scared about scar tissue how can you recognized and avoid?

If you surf the web you can always find articles of some doctors told you to be very careful with PE cause is possible to develop permanent damage and scar tissue inside the penis which can compromise good erections even shortening the penis size in the long term.

To be honest i’m really scared about this scar tissue.And sometime i’m guessing if i already developed any form of this scar tissue due to PE

How you can recognize if your penis has no scar tissue and the safest way to be sure you will never develop in the future?Cause imho erections is any time more important than any gain always !!!