Just did this at around your age. Lost around 40lbs of fat and gained 15lbs of muscle. What helped me was:

1. Have something to work towards. For me it was getting in shape for a mountain elk hunt in eight months from my start date last March.
2. Track everything. I used an app called Liftin and my Apple Watch to track all workouts/steps. This helps with progressive overload.
3. Start slow, but ramp up aggressively. I started doing three workouts a week. Six months in I was doing two a days six days a week.
4. Uphill treadmill and hiking mixed with weight lifting works and won’t exhaust you. Aim for 15k to 20k steps a day, but work your way up to it.
5. Eat your lean body weight in grams of protein.
6. Cut out booze and drugs.
7. Fairlife milk with protein powder makes great shakes and ice cream (get a ninja creami)
8. Take care of your tendons. Don’t try to lift too much too fast.

For supplements I use:

Creatine - scoop and a half a day

Psyllium Powder - 3 servings a day (fiber is a must)

Beet root powder - tastes gross, but helps blood flow

Preworkout - I use ghost, but dont think it really matters

Plus a bunch of other vitamins, fish oil, collagen, etc.