Sounds like a nice contemporary idea, and the rhymes ain't bad. The adlibs in the back and cutting itself is okay. It sounds with the production like you're performing at mic night and that's your recording though.

There are lots of tutorials on mixing vocals, but some quick recommendations from me, I would cut everything below 250 hz on the vocal so it doesn't sound boxy. You might actually be able to take a free all in one plugin like KSHMR Essentials, even the free Kick version and up the pressure and tape saturation to achieve a tighter, less PA pumping. To remove those harsh P, B, and F sounds while recording, you can take a t-shirt and coat hanger if a storebought pop filter is out of your range.

As far as the beat, the percussion, with the exception of the hats, isn't cutting through like it should. I'm not sure what DAW you use, but I would side chain the instrumental with the snares, claps, and kicks, the 808 to the kick, etc. I would reduce the hihat by about 2 dB at least, while taking up the snare/hat, and kick up in the mix.

Make sure the volume of your acapella is consistent throughout. I'm not sure if it's compression on the master, or if it's ducking in and out. At some points it's quite loud.

After listening through twice, it doesn't sound bad. There are some spots where in your delivery, particularly adlib "eeeeeeh" where it sounds like you're not projecting confidently. Can you imagine any of your favorite artists sounding like that trying to get you hype? The verses themselves are great disses, but remember every part of the track got to have the same vibe.

Beyond that I would recommend doing some of your own processing on your samples to make them your own. KSHMR Essentials Kick is a free plugin I've been using for transients, fizz, width, and compression all in one box, and it isn't just limited to kicks :) I also recommend GComp2 for gating. If you want plugin or samples other than what I mentioned, hit me up.

Good luck, and keep doing what you're doing. It's a long road to great sound, but it's only onward and upward from here :)