Conflicting feelings

So lately I’ve been starting to have doubts in my relationship with my boyfriend that I live with, we’ve been dating 8 months going on 9, but lately I’ve been getting bothered by little things he does and he’s very clumsy, and sometimes irresponsible. He recently proposed which I said yes to but I’m starting to question my response. I’ve always been an indecisive person overall but I can’t help but feel that maybe I’m jumping the gun too soon and haven’t explored much. Aside from flaws, he’s really sweet and clingy which I like because I used to be neglected by previous exes so I really like that about him, he’s bought me flowers several instances and small gifts and has driven hours just to see me, he even moved half way across the country to be with me in California. I’m 22 and not sure how to feel about things