Ahh Blue Belt.
The Sun is brighter, the sky more blue. Somehow you've definitely gotten more handsome and your vigor for training is renewed.
Personally, the difference I saw in myself from white belt to blue belt was to be able to train more aggressively and the ability to absorb more information due to due having good basics. My purpose for BJJ was to win MMA fights not medals. The possibility of a blue belt fighting a black belt in an MMA match was AND is probable in regional circuits
Lets take a walk through the beginning of this world.
Boom. New world, new monsters with higher level skills, stamina and pretty much everything else.
Great.
As a white belt, higher belts pretty much avoided you unless you were the guinea pig in some mystical experiment. Now, in advanced class, you're fair game. Not only are higher level creatures around; there's a lot of um'. And they don't wait for you to come to them.
The need for knowledge is extreme. You sit up at night watching YouTube clips for cheat codes that will somehow let you teleport past this part of the map but, every time you try it live, you get smashed or your coach yells, "Why you do that?!?! POE HA!"
You thought it would work and Poe was never funny. Now you're confused and disappointed with yourself. It's like exploring a large portion of map without saving it then getting destroyed by a pack of Deathclaws. I hate that.
There will be days where you wonder why you do this and want to quit; most of you will. You will run into the same issues, get stuck in the same submissions over and over and over again. There will be times where you literally have NO idea what the hell happened to you. Like re-spawning in an unwinnable situation you have no control of what is going to happen but, more than likely, you'll be annihilated.
Your Plasma Pistol of Freedom has no power here.
Level grind. Blue belt is all about putting time in and not reaping immediate results. It's about trial and error where most of it is error. It's about lifting frustrations, boosting confidence and slaying the proverbial giants of your own.
The game moves on.