Yes, your voice sounds fine, and if you think about it, it could easily be said that Mic Jagger is not a "great singer by any means" but he's done alright! Keep on singing and you will keep on improving. I highly regret that I didn't start singing when I was younger. I didn't really start singing until I was in my forties, but I guess I'm doing alright. At least I'm having fun trying to get better!