Hey bud. I'm a boxing coach and masters boxer. I have a good bud online who has some awesome videos and workouts for boxers and fighters. Try the link I've sent you below. This video is specifically a heavy bag workout you can do. Shane is awesome.
Good to meet you and GO FOR IT, bud. I love it when guys ask about boxing. Keep up the good work.
OK...if the links below don't work for some reason, just look up Shane Fazen on YouTube. You will find videos demonstrating heavy bag workouts.https://www.youtube.com/watch?v=YuOvQ6DzGs&t=127s
OK...it seems I can't get the link to work using the included URL attachment, so try cutting and pasting one of these links:
Hope you get it to work...Shane's videos are the best.