Tape Teeps set:
First, you need athletic tape (or some way to mark a wall temporarily) and a wall. You’re going to use it for your teep. Mark one tape at waist level, one at chest level, and one at face level (if you’re flexible enough).
This drill will keep your elbow from flaring out too wide and keep your straight punches honest. Make sure you’re in a proper fight stance. Line yourself with the wall (not touching the wall but close) and throw your jab. Then turn the other way and throw your right hand.