I'm trying to make the best of this diet, but it's really hard. Could you give me some tips?

I’m 14. I’ve got mild asthma, and it really makes my life kind of miserable, because none of the medicines the MDs have given me work. My mom decided to try putting me on this diet for the month of January. Basically, I can’t eat anything out of a package, no sugar, and hardly any fruit, bread, or milk, and we’ll be eating a lot of beans. I honestly don’t think it’ll work, but I’m trying to make the best of it. I was going to make cool dishes with chicken and veggies and stuff, and experiment. I was actually thinking it’d be an interesting challenge. But my mom says food is simply a way to get nutrition, nothing more. She won’t let me do any cooking to make interesting food because “we have better things to do with our time”. How am I supposed to make this interesting? Any ideas?