This is another excellent source to learn combos that you can include in your routine. Stuart presents the moves in an easy way and slowly. I like the way he teaches.
This video is also for beginners, but you will learn harder combos with hooks and knees. Also, some muay thai basics for beginners on how to protect yourself.
This is an excellent routine to develop your cardio conditioning but also to use the bag for developing your skills. One round includes 10 muay thai conditioning drills; each is 30 seconds long with 5 seconds rest between them. Make 5-8 rounds with 1-minute rest between the rounds.
You need to be performing solid circuit workouts that will target power, strength, muscular endurance, cardio, abs and core, explosiveness, and mental toughness.