Since I am still just a beginner (in my book) and hardly know how to play the piano, ambient is the easiest thing I can do- and is also my favorite thing.
I wrote Seashore when I was very stressed out with my music composition professor (which I also dropped >.>;) and I needed to relax. I actually wrote it in Finale and mixed it in Logic and added the seagulls.
Funny. I went into University wanting to double major in Composition and Music Education.
I dropped out of Composition after one semester.
I grew tired of my professor telling me that I should make it sound like this, instead of giving me direction on ways to improve my skills as a composer, instead of trying to shape my style into a pre-made mold.
I'm glad that you are continuing to do music! For some (many of my friends), dropping music was the only thing that saved their love for it. Though I know many composers who practically ignored their professors wishes and wrote their own stuff, haha.
A good thing to is to check out some prominent ambient composers to get an idea of different techniques you could use in your music. For timbres, and stuff.
A couple of good ones are Thomas Newman, and one that I recently got into was Jonsi and Alex. Of course, I wouldn't simply stick to them! There are multitudes of great artists out there!