First post here, this place is a goldmine of information!

So, I use Ableton, and know my way around it (as in you can give me some instructions and most times I could be able to do a specific task). I've taken some classes and everything, know music theory (but can learn even more, and looking forward to it) but there's something that has bothered me and I suppose I'm not the only one: where do you start with the track?

I haven't had a single track done midway, only some projects of practice and experimentation, and obviously creation of some personal synth patches. I'd imagine that composition is obviously the first step, yet after that? I just "sit" in front of my DAW which has nothing but an instrument and empty audio tracks, with some melodies recorded. Then what?

I don't know if this is "producer's block" or something else! Thanks in advance, much love.