Just started a new job last week. Ive been in the industry for 3 years so not completely junior but getting in to a new codebase is always rough. Especially when only 1 huge library file is documented, every component is cluttered af and most variables and parameter names are 1 character long.
Doesnt help that functions are 100 lines either when each the parameter names makes the logic incomprehensible.
Got one of those rare holo hieroglyph Mew pokemon cards stolen when i was a kid, i still think about it.