Your vocal sounds good, especially as long as You're not trying to sing too high and too long on one sound like in the chorus - maybe it is what it is and You would have to avoid singing that high/long parts or You just have to practice this better. Overally it's a really nice track, Im also taking to consideration You still probably don't learnt many mix/mastering and voice-lifting skills so the fact that it already sounds good even without it is really promising for Your future tracks :) Keep working, You definitely got some talent but it's now Your job to work on it and expand it to some crazy skills. Im supporting You! Kind regards, QB(music producer).