Hi, Codeforces!

I've observed that in the last several months, I haven't managed to achieve a significant progress in average rating on CF and i started to worry whether I touched my peak potential or not, so I came here to ask you some questions. I know it's a debated subject, yet I still think it's sensible to talk about this, so I came up with some questions I still haven't found a clear answer to.

1) When do you believe one has touched his/her peak(bonus points if you're talking about yourself)? 2) If you ever believed you're stagnating, how did you change your way of practice and why? 3) Do you think that everyone has its maximal potential? No matter what do you believe, I'd like to see you state the reasons why you believe/don't believe everyone has a maximal potential.

If you have tips to counter this problem, please share them here, they will help me and many other people now and in the future.