You got some words, not the most well-defined subject matter. But it's all good cause it's just an "I'm the shit" type of song. in this type of song, you got to come with more energy. In cases like this I just tell people to yell. Yes, fuck it, yell. That way when you're talking about how you're the shit, you're aggressive with it, and we believe you more, ya know? Flow could be more precise, but you kept to the beat well so I'd just say work on the energy, and the flow will come with time. keep it up.