it's definitely hard to play catch up when you're starting from behind and switch mains multiple times. my advice would be to take it easy. play 1 main and play your alts on rested. doing everything on every char every day is a good way to burn out especially if you're doing guardian raids as well. something else that helped when i was feeling immense burn out was literally just touching grass and stepping away from the game for a few days, not even touching it for a single daily. you really start to see the redundancy in min-maxing every small part of the game.

it may feel impossible right now but there will definitely be downtime where you can catch up especially once vykas releases. i switched mains as well but i had the fortune of switching while i was ahead of the curve and when we had a month of argos as farm content.

you'll definitely be able to get to the 'end-game' in 1-2 months time through gradual progress but don't burn yourself up on it.