u/Latter-Neat-8951

Hey yall, I (22M) am getting married in September. Engineering school hit me hard and I haven’t really worked out in forever. I’m down to 135-140 at 5’7”. I’m what you’d call skinny-fat. I struggle to gain any sort of weight and it’s even harder for me to gain muscle mass. I would prefer functional training (like climbing or sports) rather than just weights. However, I know bodies are shaped outside of the gym either through diet or rest.

I know next to nothing about physical fitness or dieting so any and all advice is much appreciated.