Start here - pick up some basics here and then move on to the 'How To Practice' and 'Train Sounds' courses and Get Chugging Book

The first technique we will learn is called 'chugging' – playing the harmonica in a rhythmic fashion using chords

Learn rhythm, chugging, breathing, speed, excitement, dynamics, music, ear training, chords, whistles, steam, and power.

All you need to know about rhythm, groove, texture, dynamics, breathing, solo playing, accuracy - all this will increase your confidence and skill