Maybe try this too: https://www.youtube.com/watch?v=PiU_K27i0VE
There's a lot of parts. Wouldn't hurt to watch them.
What also helped me is this: https://www.youtube.com/watch?v=L7YJG0_Uf7o
(there are more parts also). Knowing about the leaks in microstakes is very important, because if you want to move up you should already have those leaks filled and thus you avoid tough spots (sure, there will still be tough spots, but you will also change your perception about the game, which ultimately will lead to faster and better decision making).
But you still have to find out for yourself where you make mistakes. Be it in early, middle or late phase of a MTT, or if you have some leaks in your game which on the long run affect your transition from EP to MP to LP (you can get very lucky and bust some players and chip up very fast in EP, then you go smooth through MP, maybe win some small pots, but the you're in LP and you get stuck and don't know what to do from here on, you miss out on some great spots to steal blinds, etc.)
Playing cash seems a lot easier, doesn't it?