Practice these steps 5 days a week, for at least 15 minutes each time.
Mouthpiece work:
Buzz on the mouthpiece. Do low notes (slow air, relaxed lips) and high notes (fast air, tighter lip corners)
Attach the mouthpiece using a gentle twist and use the picture to remind you how to hold the trumpet:
Lip Slurs: Play three notes Low-High-Low.
With no valves down.
With second valve (middle finger) down
With first valve (pointer finger) down.
Practice page 4 in your book.