I've been wanting to commit suicide since 2022

So I've been wanting to hurt myself for a while because not only I've been broke on money, but I've been causing too much fights with my brother and arguments with my brother or parents. Every time I go do chores with my brother, it ends up in fights. It's like this:
I want to stab myself to death, shoot myself to death, or strangling myself to death. Those thoughts are in my head, but every time I think about suicide, I think it's because of the fucking Government making shit expensive, my family keeping me from doing adult things, and treating me like a fucking 7 year old. I'm 18, but I am so fucking done living, I want to burn in fucking hell, I've been trying to kill myself because of the shit that has happened in this fucking world. I am done with my shitty life, I just want to move on and start a new life in the grave yard where I belong. I really need mental help because if I don't, I'm gonna end up dead lying on the floor.