Here's A Workout to Try
Modify as needed. Strive for perfect form. Rest if your form disintegrates. Overtime, your perfect reps will increase as you get fitter. For those that question this, you are welcome to your opinion. The key to success is doing something well. Not just doing it.
Pushup or variation as many as possible in 5:00
Swing- as many as possible in 5:00
Goblet Squat as many as you can in 5:00
Pullup (or rows if you don't have PU bar)- as many as possible in 5:00