Hi, how are you? I can certainly help you produce your songs.
I am a musician. I work as a session player (rock, pop, funk, jazz, soul) and I do audio productions (backing tracks, background music, jingles, arrangements and compositions).
I work with Logic but I know Garageband, I used to use it.
If you want we can try a song and if it works well, keep working!!
You can see some of my work in my profile. Good luck!!