I don’t even know musical theory, how more so composing music...!

THEORY IS NOT ESSENTIAL. Yes, you heard that right!
All you need I just a very good and prepared teacher, able to listen your musical intentions and translate them into notes and time.
Theory really is nt a problem anymore hwne you have someone else sorting it out for you: just like it wouldn’t be a problem to want to get somewhere without your driving license: just get a taxi! And a comfy one too...