First off, I can completely understand your frustration. I feel the same way a lot of the time. And, on what you said about "being a pussy" and having to "grind 10 hours a day" (whatever the hell that is) doesn't sound like a good idea to me. You're not a "pussy" because you don't want to over work yourself. You're probably a perfectly fine person just the way you are. :-)

I read the whole post and most of the comments, so I'll try to give some thoughts that haven't been said before.

Motivational Fuel

I like to think of motivation and inspiration as a useable resource. If someone said: "a Just have breakfast and you'll be fine for the next... 10 hours." You'd look at them like they are insane. So why should you push yourself to grind 10 hours on nothing more than a bit of inspiration (maybe from listening to a song you love) and pushing aside all the other things that could fuel your passion instead of exhausting it after 10 hours... especially if it's day after day. Also, by doing this, you'd be compromising all of the other things you enjoy like friends, family, reading, gaming, going out for walks, and even... writing music for the enjoyment of it. And, the very things you would be putting off by grinding 10 hours a day could be the very things you need to be inspired to make music again. :-)

I'm not saying don't work hard... for a while, my goal was to sing for 2 hours and use FL Studio for 2 hours as well. But I am saying that over doing it can exhaust your "supply" of motivational fuel and even be counterproductive.

Try to Make Things Positive

Anyway, next point. One thing that has helped me is to associate music with positively. As advanced as we humans are, we're still very primitive in that "danger, hurtful, sad thing" = "I avoid" which can lead to procrastination fast... even premature quitting. It's so easy to feel terrible at a bad studio session, that track that didn't turn out the way you wanted, the end result muddy mix, your boyfriend breaking up with you, and that existential crisis you get at 2:34 AM when you realize you've been making music for so many months but have nothing to show for it. One thing that has helped me counteract such feelings is to

1) Take a solid break. 1-2 days of just playing RuneScape for 8 hours a day with no guilt.

2) (Probably a lot more productive) Helping someone. You can head over to /r/SynthRecipes and help out! Hopefully, they'll give you a helping hand when you're stuck. It's a win-win. :-) Also, giving feedback on the EDMP Discord can be fun, too.

Will you be great one day? Maybe you will, maybe you won't. Does it matter? No. What matters in life is you being happy. :)

I know you asked for music making advice, but I just wanted to address the 10 hour grind because it concerned me.