Sudden Changes in My Life: Grateful but Anxious

To start off, I'm definitely not complaining, and I'm super grateful for how my life has suddenly become. My dad recently took over the household finances, and he's been helping me a lot with money stuff. This last paycheck I got was the first one in months that I wasn't overdrawn leading up to it. On top of that good fortune, this guy I met with once back in October started texting me again. I really liked him when we met and he seems to like me too. This all happened in the same week. I'm anxious about all this stopping as suddenly as it started. Right now I have no reason to think anything will change, but I'm scared of how I'll feel it goes back to how it was. I don't know how to stop that fear