I'm playing for a long time but very bad. Should I download hacks?
No. Nobody likes hackers. That will bring the more "enemies" as friends
Hackers are always banned on almost every server. In addition, the use of such tools is often illegal. Let it be better and play more Minecraft. Then you will get better too.
No, if you do not want to buy old accounts and you do not know how to handle an IP-ban, then leave it, because you just spoil the others' gameplay.
Can I go to court?
If it's real hacks, yes.
It is not illegal wtf