Help for dealing with puppy!

Darcy • I am inimitable; I am an original. 🦋 Chaotic Neutral

Ok, I don't like making posts like this but I'm running out of ideas so I'm coming here for help.

About two months ago, my mom announced that we were getting a puppy (we've never had a dog in our life and neither of us have mentioned wanting a dog prior) from a friend of my mother's who's dog had just had puppies. (I think she had a moment of 'omg it's so CUTE!!')

Dad wasn't big on the idea but said yes. I was completely against it and gave several reasons why we shouldn't (We're never home so it would have to spend a lot of time in a crate, it needs to be house trained and we don't have the energy for that, we already have a senior cat who's a grump, she already doesn't like the mess the cat makes so why does she think a dog would be any better, have you seen the beginning of Lady and the Tramp, etc.) but ultimately, I had to concede that this is their house and I can't overrule anything. But since I take care of ALL of the upkeep of my cat, this would be their dog and not my responsibility. Okay.

The puppy has been here now for a month (we got her at 9 weeks) and we are all about to pull our hair out. She's a very high energy dog (she didn't pick the puppy by its temperament, only that she thought it was the cutest) and basically everything I warned about has come to fruition with mom now starting to reach her boiling point as well.

Crate training is going...okay. We're still having difficulties with her peeing in the house (about 75% of the time, she does go outside which we consistently praise her for) and as I knew would happen, I end up having to puppy sit when I'm off which is basically like taking care of a two year old and I'm reduced to having to do stuff while she sleeps.

I guess my question is, is it going to get better? Will she eventually mellow out as she gets older? Any tips or advice cause I'm just about at the end of my rope...