What kinds of diets help?

Emily

I've gained 9 pounds since June. I'm not pregnant. My mom has been doing clean eating and she's lost a lot of weight where I've gained it. I walk around 4-5 miles a day just at work and I've been doing the clean eating with my mom. When I weighed myself today and saw I've gained 9 pounds since June I started crying.

If any of you have had any success with diets or workout routines, please share.