Front tooth cavity treatment

Have you ever had a cavity treatment on your front teeth? I didn't want cavities to form on my molars, so I had a habit of chewing things like My Chew, jelly, or chocolate with my front teeth. I once went to the dentist for treatment and was told I had a cavity on my front tooth, so I got it treated. The cost was more expensive than for my molars, and it was more painful, haha. They drilled a hole and blew air into it, but it was so sensitive and made me really angry, haha. Now I will never eat with my front teeth again.