Am I too young?

Okay so I'm 15 turning 16 in November and there's this guy I've been sexting hardcore and it's been going on for about a year now maybe. We keep saying we'll hook up one day and don't get me wrong I kinda want it to it's just I feel like I'm too young? Idk I'm pretty mature for my age as well but idk I really want it tho and I'm so confused