Reddit reviews 27 Groups of Exercises: Trumpet

What I'm going to say, I'm not saying maliciously. You need to stop being short-sighted and wanting instant gratification. You're not very good right now and you're not going to be good for a while. You need to make a practice schedule and stick to it. The tone, range, dexterity, and reading skills will come eventually through hard-work and dedication.

This is a great website for ear-training: http://www.musictheory.net/exercises

Beginning books: Clarke, Irons, Schlossberg

Good beginning pieces to work towards, (I've included links to videos and purchasing sites): Charlier Etudes 1 & 2, Leroy Anderson's Trumpeter's Lullaby, Handel's Aria Con Variazioni, Jules Levy's Grand Russian Fantasia

The Irons Book will help you with these sorts of things. You are probably making your intervals by tightening embouchure, rather than controlling tongue arch.

You're right that breathing is not just about bringing in more air. You could take the biggest breath in the world, but if you don't have any breath control and you only use a thimble-full of air to play, it's not really doing you any good.

Language is weird and typing about this stuff can lead to confusion, but I would not use the word "push" to describe how we use air when we play trumpet.

Here's a few book recommendations that have good information and exercises:

The Breathing Book, by David Vining

The Buzzing Book by James Thompson

27 Groups of Exercises by Earl D. Irons

I also recommend checking out the Breathing Gym:

The Breathing Gym (Book & DVD) by Sam Palafian and Patrick Sheridan

I like Claude Gordon's approach, so I recommend his Systematic Approach to Daily Practice. It will be too much for you at the outset, but that's ok— most exercises will have a "play as much as you can" deal; move on after you've missed three times in a row.

Good books for specifically lip flexibility are Collin and Irons.

And of course, you can't go wrong in general with Schlossberg or Arban's.

Either Clarke or Arban's will be good for technical facility/etudes, once you're there, but really the only way to get there is to play them so start now. Play them way downtempo if need be, but you're not going to wake up one day out of the blue and be good enough to start playing out of the Clarke book full speed.

That being said, I also agree with the stuff /u/awashsound said; I just felt like giving you options if you want to go deeper, or if you—you know—prefer dead trees to computer screens.

My bad!

https://www.amazon.com/27-Groups-Exercises-Earl-Irons/dp/1581060572

https://www.amazon.com/27-Groups-Exercises-Earl-Irons/dp/1581060572

Practicing your endurance is the key. When you practice on your own, I'd recommend the Irons book which will help both flexibility and endurance, and try working up a few of the Arban's Characteristic Studies or the Charlier Etudes. Being able to play those etudes top to bottom have helped me a lot. Good luck!

get this book and practice out of it every day. your lip slurs will be powerful.