Not bad for someone new, but I feel like you're presenting yourself as a little newer than you are. Were you on another DAW before FL Studio?

Feedback I've got for you - first and foremost, your 808 is standing out hard. Listening to your beat repeatedly may have numbed your ears to it, but I'd like it to mesh in the mix better than it does. Needs to be turned down. If you've got the sound at 1:23 layered on it, that needs to be turned down, too, because it sounds unusually loud.

Other than that, I'm not going to dissect this super hard, but you could do with some more structure. All the notes are working, but your arrangement is very repetitive. Hip-hop is big on loops, but why not resolve that three-note arpeggio you've got at the end of every measure? Instead of going up, why not have it go down before the melody is cut? Things like that will add character to your song and keep listeners from getting bored.

Good luck!