Anyone else financially scared about their future?

I already work in healthcare as a healthcare aide, fulltime + I beg for overtime. Yet it isn't enough and i work on a difficult unit at times. I was debating on picking up an evening job to overlap. Thinking of training my body to get used to working like this. But yeah, I just know that some people are gonna miss me if I get absorbed into overworking myself. I may miss parts of myself too.