The expression " to be cut out for" something means that you are qualified to do something or you are prepared to do something.

” “to be cut out for” something 表示你有资格做某事或你准备好做某事。

" To be up to" something here means to be ready for something, to be prepared to do something, to have the energy and the knowledge to do something.

“to be up to” 这里的意思是为某事做好准备， 准备好做某事，有精力和知识去做某事。