Don't want to be THAT guy, but as a critic, it's my duty to be honest... this ain't it.
Your flow throughout certain points feels very off, like you're not hitting the beat correctly. I think it's made even more noticeable by the punching in of certain lines, so your flow sounds rather awkward throughout the track.
Lyrically you're not awful, but this is nothing special. The Jay Leno line is kind of funny at least, I'll give you that, but most of this is the same cookie cutter brag lines you'll hear from almost any mainstream rapper. You need to have more creativity and personality if you want to stand out as an artist.
Also, I don't know if it's just your accent, but something about your voice puts me off. Your cadence at certain points feels very forced, and I'm not a fan of the way you pronounce certain words. Slant rhyming is a difficult skill to get right, and here it doesn't sound too good, at east as far as I'm concerned. Your voice is fine on it's own, but the delivery needs work.
I can say you picked a good instrumental at least, this production is dope. Like the title implies, it's very smooth, and it's nice to listen to, but I think you need to improve as a rapper before i enjoy the production with you over it. Sorry if that sounds a little harsh, I don't intend to offend you at all.
This could just be a lacklustre song from you and your probably better than this normally, but I can't vibe with this track. 5/10.