Newbie Question Race/Class Discard

[TheKGBjr]

so basically if you get dealt a several race or class cards and you already have a race and class in play thee only way to legally thin out your hand to stay under the 5 limit would be to discard your in play race/class and put in play a race/class from your hand? They can't simply be put on the table because they are not "items".

What happens if you need to lose cards to stay below 5 cards in your hand? If you have played every legal card it goes to charity and if charity doesnt work you then are able to discard the excess?

Could I then on my turn decide I wanted to change classes to one of the 2 or three I am holding and then simply keep playing discarding until I settle on the final class/race?

Sorry I know it's a lot but the more I think, the more I confuse myself haha