Use Compound Exercises
Instead of working out only one muscle at a time, use exercises that are beneficial for a few muscles at once. Here are a few examples:
Squats: Make sure to keep your weight on your heels, not your toes. Also, your knees should not go forward past your toes.
Benefits- Thighs, hamstrings, calves
Push-ups: Place your hands below your shoulders with your fingers spread. Keep your back straight, making sure that your core stays low.
Benefits- Chest muscles, shoulder muscles, triceps, abdominal muscles
Walking Lunges: Walk forward with one foot and drop the opposite knee. Keep your body weight on the back leg and make a 90-degree angle with your front leg. Alternate legs as you walk forward.
Benefits– Quadriceps, glutes, hamstrings, calf muscles