class switch

i want to switch my class (i am a gourmet, that alone can tell you why 🥲) i did not know there was such a thing as classes when i first started, it just made me a gourmet. but everyone else (scholars, doctors, guards) is way ahead of me with might, damage dealt in battles, costumes, and can do much more than i can in the game. if i switch, is guard or scholar more worth it? which is better? i know it takes a switch card, but if i switch what do i lose? does my might reset? and if i switch, what would the best team of heroes be for scholar or guard?