I think you are on your way to making good music. It's not the finished article - but you know that already. Future Bass isn't my thing - but there's a few elements i would address. Too much click on the kick. I know a good kick has to cut through - but you've slightly compromised the bottom end of the kick in this instance. The little vocal chops 'Ahh's' need something behind them - experiment with your reverbs and delays to get something interesting with them. The original vocals need a bit of boosting also- to lift them out of the mix - again some fx, reverb, delays - especially on key words or phrases. You need to make it a bit different from the original - and imho - the original version isn't that great tbh - so there's a great opportunity to make yours a better take on it. Your top synths sound very clean and well mixed. Overall, the mix might require a tad more low end - but you may be able to fix that with that kick drum issue i mentioned earlier. Overall a great attempt on what i think is a mediocre original, and i think with a bit more work you'll have something sounding far better. Good luck.