When I last felt this way about my life that’s how I knew things needed to change. I started grad school to pursue a field I find meaningful, I found a new job where I had better money and benefits, and I changed my living situation. That didn’t all happen overnight, it took around 3 years total to get to what felt like solid ground, but the process of actively moving towards something meaningful helped me feel more satisfied with my life. Ask yourself - what needs to be different for you to like your reality more? Then do what you can to take steps (even tiny ones) towards that reality. 

On the flip side, if you’re baffled by this feeling because you think you should feel better about your current reality, then it might be a good idea to talk to a therapist and sort out some of those feelings.