Don’t get overboard, practice daily
And yeah please don't name your file as a random number or words use a proper naming convention.
Always take notes of what is being taught in class ‘cause there will be a time when you'll forget it. Try to write these notes in your own language; do not copy from somewhere if you want to write the code and steps too. Say you learnt addEventListener today (easily forgettable for a newbie) and in near future you have to use it and completely forgot how to use it. Your notes will be a good backup.
But they cant explain you concept better than you can they
Don't go haywire about frameworks and libraries
Having problem in learning
You are not getting what your instructor is teaching, tell him don't move forward with the class thinking what others will think it's your class you have paid for it ask your instructor to teach again and again unless you get it.
Or maybe you're coding what you learnt in class and is not working as supposed to even if the same code your instructor wrote don't worry happens with everyone don't get frustrated just put your head down don't think about or go for coffee break it will come to you sooner and don't fear to ask your instructor about it.
Focus on ES6 concepts
Try to follow the DRY principle (try not to repeat or copy the code you just wrote anywhere not even once) if you start this in early stages it will become a habit.
These all keep this in mind and you are set.