shid learn about keys. start with the easy ones with the least amount of flats or sharps.
Do this when you hit a plateau: wikipedia a key/scale, make beats only using those notes in the scale for a min, pay attention to the notes you're using to memorize it. Then when you get bored, go to the next key. Thats how I learned scales when I was self teaching. Then you can switch between keys when you want once you know your notes
Also for inspiration, listen to anything and everything. Do it as much as you can all day.. you gotta be swimming in music to create good shyt. You'll have melodies and rhythms in your head all day
Bonus: learn time new time signatures. 4/4 is great, but when you learn how to utilize different ones or switch back and forth its crazy.
This beat is in
11/8