Essential Toolbox
Recommended Smartphone Apps - Soundcorset (free) or Tonal Energy (not free, but better)
Use a metronome ... ALL. THE. TIME.
Play with a tuner up/open a LOT..
Part II - Long Tones
Air + Embouchure = Tone
1) Practice having a great airstream with proper breathing.
2) Think about embouchure formation (mouth position)
3) Good airflow and a good embouchure will equal good tone
Part IV - Articulation/Technical Studies
Part V - Scales & Arpeggios
Part VI - Music