Such hard times for you and for so many. I'm so sorry you're having this un-anchored feeling. I'm sending you my best vibes for a new job and new start. Yes, it was lucky you found out how unstable your b.f. was before you moved in. My daughter had a similar experience fairly recently. It's unnerving though. I will be crossing my fingers that things get back on track for you.
I know of two people who do dog sitting and dog walking. One is someone my daughter knows and use to work with (I think she lost her job) and she makes 70K a year walking dogs!!! (she gets her exercise too!) The other, I heard about from someone I was doing business with. His daughter quit her rather high level corporate job with Nordstroms because her dabbling with dog sitting on off time got so lucrative, it didn't make sense for her to stay with Nordstrom. I guess she's haulin' it in. Both of these people live in the Seattle area. So, if you're in a city where there is some money and people take vacations, you might think about that.
Anyhow, nothing stays the same. And your situation will also get better.