Im a new player, me and my brother bought the ultimate edition bc we like to collect stuff, do we need to use the token for the pass shit asap or can we save for next season?

also, we are currently doing every side quest and dungeon we see on the map (we started the campaign instead of the dlc skip or whatever), should we do that or focus only on main quests?

should we save all the mats from rares and legos or can we use them as we go?