Anybody here wanna help me?

I am a highschool musician from montana (i play trumpet, piano, drums, guitar, bass, and a lil bit of a few other instruments) and i really want to make my own songs, i have an audio interface, i know some music theory, but i can never get started. Would anybody like to help me with things like chord changes, lyrics, n stuff like that? (Also btw i think i want to make like an indie/indie rock song/songs but i am open to other genres, cuz i play everything from metal to jazz)