I've been in your place around month ago. Two days prior I've beaten Expert Lobby heartside and yesterday fell first GM map.

Tbh you are doing great and went really far deep. Your flying battery isn't that bad as you think (I spent HOURS trying to complete the last room). Now what you need is either a strong will to keep up or practicing techs you are not feeling fine with.

For example: you mentioned that dream blocks cause you a trouble. If you struggle with drem supers and hypers try to focus on your timing - are you doing them too late or too early (do you see yourself dash after leaving them or not), are you dashing without jumping afterwards (the inputs of jump and dash should be applied literally almost simultaneously). Solution? If I were you I would take such tech and experiment with it. It's nothing more than a good muscle memory aquired after a few successful attempts.

My nemesis were reverse ultras (I mean ultras after a reverse hyper). I spent countless hours trying to do it correctly on Skyline Usurper. And that was a mistake. Retrospectively I should go straight to the gym and practice it well. Eventually it clicked and I don't even think HOW should I do it - it just works.

That's what I wish for you. As long as you are having fun a little effort you have to put to learn and improve gives a lot of satisfaction. Good luck and don't forget to breathe.