I think you should re-think your motivation to make music like elliot said. Take it slow, do it for fun, set small achievable goals for yourself and see how you go. If you aim to be Teisto you will probably burn out and hate yourself and to be honest the last thing we need is another artist trying to be another big pop trance artist. And learning how to use Abelton itself won't give you talent either.
To become a good musician or producer I don't think you need schooling, although it could definitely help. I think the best musicians are usually the ones that enjoyed/studied lots of different styles of music and found their OWN sound.
Set yourself a goal every week to learn a new part of Ableton, learn it inside out then choose another part of it. Watch some youtube vid's and just mess around with it.
When you're not on Ableton listen to ton's of music and try not to be narrow minded you will be surprised with what you like and where you can draw inspiration from.
Study some light musical theory not so much scales and all that stuff but more tonality contrast and other musical elements, this helps you understand and appreciate musical concepts and helps you create your own.
My couple of cents, good luck
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