Its better to bulid up ur mind by reading books ....you will glow may be

Learn about Calisthenics. It's a good option for body strength instead of going to the gym. Focus on your diet and workout consistently. It's healthy plus you'll look and feel better.

Why not gym? Besides that you could go shopping for new clothes/shoes. A new haircut/growing a beard. And changing the way you handle yourself...

Maybe growing facial hair in a tidy manner.

C

No other recommendation other than gym