Do push-ups
Do squats
Do lunges
Do planks
Do glute bridges
Do pike push-ups
Do chair dips
Do calf raises
Do pull-ups or chin-ups if you have a bar
Use resistance bands
Use dumbbells or kettlebells if available
Use household items as weights
Train each muscle group 2 to 4 times per week
Increase reps over time
Increase sets over time
Increase resistance over time
Slow down each repetition
Use full range of motion
Rest 30 to 90 seconds between sets
Eat enough calories
Eat enough protein
Sleep 7 to 9 hours per night
Stay consistent
Track your workouts
Keep good form
Train to near failure on most sets
Balance upper body and lower body training
Include core exercises
Stay hydrated
Be patient