u/nepupa

So not long ago I noticed that my bike can not switch speed higher than 3 and I saw on internet that there's some screw that can be loosen and if I tighten that screw it will be normal. But because of my rather little knowledge of bicycles (and not being very attentive), I apparently twisted the brake cap to the right (I do not know what it is called, but on the rear wheel the equipment to which the brakes lead) and from there something spattered. So now I have a question, what should I do? I've read that something might happen to the brakes and they won't work properly. and I still haven't fixed the speed. I'm sorry if something is unclear. I'm not a native English speaker.

I have to write some kind of quote like the creed of life can you throw in your favorite lines from sum 41 songs? Edit: or if you want, write down your favorite sayings of someone from the group, for example, from an interview, I just fucking love this group and it's very difficult for me to choose something from their work.