You don't want help or advice, you aren't going to follow it. You like giving us stories of your too small bikes with damaged parts that are allegedly installed by someone calling themselves a mechanic.
If someone is thinking hey I have a similar problem and this seems like a legit thread, what I would recommend is finding a proper mechanic and have them take a look if you don't want to go at it yourself or like the OP are not mechanically inclined. If you are mechanically inclined and have good tools and are willing to work on it
Andrew R Stewart had some excellent ideas.
Anytime you hear anything out of the ordinary or it feels different I would take it to a mechanic (not just some random person who makes claims but a real mechanic). Noises and problems rarely just get better aside from occasional disc brake noise after bedding in and it is always better to be safe than sorry. If you bring your bike in for regular service and don't crash or abuse your bike these problems are generally non-existent but things can happen and your bike should get the love it deserves.