simply put

to reveal (usually secret) information

You can't have something both ways / you can't have the best of both worlds / you can't have the two mutually exclusive things you desire at once

to apologise and accept humiliation

Selling quickly and in large quantities

an important person

to lose control as a result of being extremely excited / annoyed

a clever person

not the type of things I usually enjoy

worth considering

to get upset over something that has already happened and cannot be changed

in trouble / a mess

something positive that happens in an already very good situation, but sometimes, something quite bad that happens in an already very bad situation.