She's cut from the same mould.

I think she meant "cut from the same cloth

Fig. sharing a lot of similarities; seeming to have been created, reared, or fashioned in the same way. She and her brother are cut from the same cloth. They both tell lies all the time. Father and son are made from the same mold and even sound alike on the telephone.

We'll reach that bridge when we cross it.

She caught herself but what I think she meant was: We'll cross that bridge when we come to it.

Meaning: You can say "we'll cross that bridge when we come to it" if someone mentions a problem that might occur in the future, but you want them to think about what's happening now instead.