If your friends were true friends, then they would still like you even if you changed a few of your habits. A real friend would be friends, even if one changed or stopped doing the same things they used to do together. A real friend would find a different activity ect. Try changing one habit, even a little bit. Try not doing it to such an extreme or as many times as you do it now. Make a line in your mind- where you wont cross. You will do everything until that point. Pick a line that is still doable but that you are afraid it may possibly reach that point.
I think you are smart enough to find one way to change ONE habit in a tiny bit…
Enjoy playing football!