Hey brother, just get down to the gym and do some basic lifts to get into it. Nothing too heavy, just enough to get yourself in the groove.
Depending on what equipment your gym has, maybe something like an upper/lower split to get yourself acclimated.
Upper
- Machine Chest Press or Smith Machine Chest Press
- Pec Fly Machine or Dumbell Flys
- Lat Pulldown Machine
- Seated Row
- Machine Shoulder Press or Smith Machine Shoulder Press
- Dumbell Lateral Raises
Lower
- Hack Squat
- Leg Press
- Leg Extension
- Seated Leg Curls
You could try something basic like that and once you’re a bit more confident you could start throwing in some Preacher Curls, Tricep Pushdowns, etc.
Hope that helps. Reach out if you have any other questions.