I'm a sucker for those testimonial raw samples, and a decent bass line, what i would recommend is if you're going for a soft R&B-like delivery i would lengthen your bars, don't extend your letters resonance (sound of letters within the words for ex. ssssound of my voiccce), but slow your delivery and let the listener feel the lyrics with the beat.
Beat: 9/10
Vocals: 7.5/10