Everyday i realize even more that this shyness and whatever is just plain fucking retarded.

I dont know what to do, its just so fucking hard.
I've been lurking here for few months, every day like 5-7 times.
Wrote down tips, tricks and shit like that.
But im just so fucking shy, it makes me so mad and I can't do shit.
Like saying Hi to a girl, my voice cracks, and rest of the day I just cant stop thinking how i fucked up.
Literally I cant stop thinking about how i fucked up by saying hi.
im not fat, lots of girls have said that im cute or whatever bullshit.
Can't even go out with friends anymore, always overthinking what should I say, what do they think about me etc.
I get massive chills just by thinking about saying hi.
i mean its just so fucking stupid yet i just cant do it.
there's like something blocking me.
i've watched shitton of seduction videos, i've read every confidence post here. I get this temprorary boost, but after i leave my house im back in the begginning.

Im so fucking mad. I cant shut off my brain, im extremly introvert.
I dont have depression, im just mad because i just cant do it. Its like im in jail.

tl;dr shyness is ruining my life. i cant stop giving fucks, im starting to hate being with other people because I cant say shit, I cant do shit when they're around. It gets worse every day, i cant even walk normally because i overthink about that too.