I've always wanted to be a chef, but I'm not too good at cooking.
I can understand that. It takes patience in the beginning. Most people just think of it as glamorously coming up with unique dishes that win awards, but being a chef is being professionally trained in all aspects, even food preparation. Would you have a cuisine you'd focus on?
I like Mexican cuisine for sure!
It does have a rich history.. You'd be contributing to something that had its beginnings over 9,000 years ago, in agricultural Mayan communities! But more importantly, to become a chef, you don't need to feel obligated to go to a formal institution for training. You can apprentice under another chef to earn your knowledge.
That's interesting, I didn't know that.
Yeah, and you'd need to realize there's a bit of a hierarchy. So, there's a sous-chef, who deals specifically with food prep. To become your own head chef, you'd probably be a sous-chef for someone for a while. Which is good, you'd need the experience, and you'd still be second-in-command in the kitchen. Or you could even be "chef de partie," where you just handle a specific area of production. 
I may check that out! Thank you !
I know you feel like you may not be good enough right now... But I hope you at least consider it, and find some inspiration and courage in yourself. The title of "chef" in the culinary profession came around in the 19th century, from "haute cuisine." A lot of chef/cooking related things within the profession have a rich history and culture that will continue until the end of time. You should be honored to join that lineage.