>>214009327
Well, I guess the best advice I can give you is to stop thinking of your hands as two autonomous and independent beings. Think of them as a single entity, divided in two. They complement each other. So instead of being self defeatist from the start and thinking "how hard it is to make separate motions with each hand", think of it as building blocks, one hand lays the cement and the other puts the bricks.
As such, when you hit a note with your right hand it simply means its the left one's turn to hit the one it's supposed to, and then the next one and so on, and the product is a beautiful piece instead of a simple melody.
I think the biggest obstacle for you is to stop thinking of this as being too hard. It's simply a puzzle to be solved, and once solved it gets easier from there.
I'm not a professional so I can't give you any theory or advanced methodology, but what I can suggest is this: get a midi viewing software like Synthesia, download the midi files of a couple simple nice songs that you wanna learn, and play them there. It gives you an overview of the notes played with each hand, instead of reading sheet music. Then you simply replicate what you see. Then I'd suggest chipping away at the song little by little, say 10 seconds at a time. Do it over and over again, until you get some fluency, and then proceed to the next part of the song.Then you can challenge yourself with a faster pace, or more complex rhythms.
>>214009763
>Do you write your own music, too? Or play in a band or something?
Not really lol, I'm an automaton playing the songs I like. I have produced a couple of simple original pieces but they're far from being complete.