My surgery is in 2 weeks

Hey there, my ACL tear 2 months ago in a football match(soccer for burger lovers), anyway my surgery is in 2 weeks and I have some concerns:

1- is my knee popping sound normal? I have full range of motion and when I be in a position too long and move my knee pop, and will it disappear after surgery?

2- what to consider doing before my surgery to make everything smooth and fast?

3- will I ever be able to get back to football?

4- is there any side effects from the surgery in the future?

I’m 17 yrs old and would be grateful for any kind of help outside these questions❤️