I didn't know about all those things
Chess is damaging my mental health.

Chess is damaging my mental health.
I keep losing.
I never improve.
Nothing I do makes me better.
I WANT to be good at chess.
I just can't.
https://www.chess.com/forum/view/community/im-about-to-quit
https://www.chess.com/forum/view/for-beginners/will-i-ever-be-good
https://www.chess.com/forum/view/for-beginners/i-keep-losing-and-im-rapidly-losing-motivation
https://www.chess.com/forum/view/for-beginners/why-do-i-still-suck
You do whine quite a bit.
Your profile says "I'll never be good at chess". If you don't believe in yourself, who will?
You seem to feel entitled to be good at anything you set your mind to and quickly too. A change of attitude might be the first step.
Wow, that was some TOUGH love! P.S. I TOTALLY get why the OP is discouraged.

he does get very upset when he plays something but thinks that he isn't getting better.
I'll have a talk with him but I can't promise it will work.

he just hates losing and being bad at stuff.
he thinks that if he doesn't get good quickly and is able to win every time then he'll never be good.

Nothing I do makes me better.
Nothing you do, nothing you do, and what is it you do exactly? Nothing or just picking your nose?
You're just a lazy person who won't go through the tedious and demanding process of learning. Thassal.

I keep losing.
I never improve.
Nothing I do makes me better.
I WANT to be good at chess.
I just can't.
learn the basics, play rapid, and I know this sounds weird, but I play better when I just breathe, deep breath in, deep breath out, and so on. It gets annoying when I play a 70 move game with 81% accuracy and still lose, but as I said breathe.

Nothing I do makes me better.
Nothing you do, nothing you do, and what is it you do exactly? Nothing or just picking your nose?
You're just a lazy person who won't go through the tedious and demanding process of learning. Thassal.
I know I'm lazy. I know. If you came here to be a jerk, then you need to find another hobby. I'm aware I'm a whiny baby.

You name it being a jerk, that's on you.
You bet completely it's on me. You complaining about me won't stop ME complaining.

Sure thing nothing and no one can stop you from being less smart than you can be: who can the more can the less. No news here.
You claim I'm complaining, again this is your choice alone to name things in such a way.
But does it bring you anything worth mentioning? A sort of dark, petty satisfation of some sort maybe? because you don't believe you can get anything better from life? Or some other lie?
It's not my problem right. But anyway, I'm informing you, you are not doing to yourself any good.

Anyway, here is some inspirational song for you, so you know you're not a pionner in what you're doing.

Sad.
Here the lyrics then:
There's no point in asking, you'll get no reply
Oh just remember I don't decide
I got no reason it's all too much
You'll always find us
Out to lunch
Oh we're so pretty
Oh so pretty
We're vacant
Oh we're so pretty
Oh so pretty
A vacant
Don't ask us to attend, 'cause we're not all there
Oh don't pretend 'cause I don't care
I don't believe illusions 'cause too much is real
So stop your cheap comment, 'cause we know what we feel
Oh we're so pretty
Oh so pretty
We're vacant
Oh we're so pretty
Oh so pretty
Vacant
Oh we're so pretty
Oh so pretty
Ah but now
And we don't care
There's no point in asking, you'll get no reply
Oh just remember I don't decide
I got no reason it's all too much
You'll always find me
Out to lunch
Oh we're so pretty
Oh so pretty
We're vacant
Oh we're so pretty
Oh so pretty
Vacant
Oh we're so pretty
Oh so pretty
Ah but now
And we don't care
We're pretty a-pretty vacant
We're pretty a-pretty vacant
We're pretty a-pretty vacant
We're pretty a-pretty vacant
And we don't care
he complained and got advice not he complained got advice and then kept complaining.
plus, I doubt you even know Wimpydog44 so don't judge them.
Um
https://www.chess.com/forum/view/for-beginners/i-keep-losing-and-im-rapidly-losing-motivation Advice given here (A TON of people gave advice)
A month later, a new complaining forum https://www.chess.com/forum/view/for-beginners/will-i-ever-be-good (advice is given again)
New complaining forum. https://www.chess.com/forum/view/community/im-about-to-quit (advice is given again)
And now this forum. Do you see what I mean?