What do you give a shit about?
Sometimes finding anything to care about when you are depressed, but if/when you find something you care about beyond feeling better, you should really think about why, and if it's healthy, lean into it.
Some people care about creating, some about building, some discover, service to others, analysis, working with their hands, being in nature. What do you gravitate towards? Some people go down a path they don't care about, because of external pressures, or comfort, or just trying to get by.
If you don't care to advance the career you are in, maybe it's time to think about why.
I trust that if you know yourself enough to admit in words on the internet that you aren't helping yourself, you are damn self aware enough to think about these things. Don't worry about the stress of changing careers or losing progress or what other people think. Just figure out what you might care about, which paths you could see yourself going down, and mentally explore those and see what you give a shit about. Find some intersection between stuff you give a shit about and what is productive, and motivation comes. Motivation is a by-product, a secondary effect, of having something motivating to work on.
Nice username