Hi Baftis!
It’s great to see you back on the proverbial horse again! You’re right. Burnout is both normal and okay. How one processes this reality is unique to the individual. It appears to me that you have taken the right steps, as you are back at it again, and in full effect!
When it comes to the differing levels (i.e. forest, rock, cave, ginormous tree), will you have something in place to let players know what level they are on? Something like a text widget that shows up once you reach a particular checkpoint in the level? For instance, let’s say I am leaving one level and am approaching the forest level, will something popup letting me know I have reached the “Forest of Fiery Doom” 
, or will it show at the bottom of the player screen?