Is this alright to do to a crush/friend

You don't have to explain yourself to anyone. If you want to get rid of all feelings, completely cutting her off is the best option. It might be to your benefit if you told her you were cutting her off and the reason why. She may end up telling you how she feels and that will give you an answer.

more testesteron in your body please. just explain everything. and say that you want this girl. you must be ALPHA. smell from you must be like a horse after hours of runing.

How the fuck do i relate with this so much, but ive always liked her.. I just need to cut off with her.

That is kinda rude to be honest, maybe just try to be friend and pretend nothing happened ? Unless you can't do that

Don't be a bitch because she doesn't like you lol

"She doesn't like me so ima block her"

just get straight to the point with her and stop acting childish

I think it is necessary to try to achieve it

I always say i have ebola and they run away.

You don't need to ignore them, you've already said you don't want a relationship and she isn't interested.
So, there is no issue.
If you want your feelings to go away, just leave it with time. You know yourself you don't want a relationship so just don't make any moves.
You don't have to avoid her.