How do I convince myself to start working?

I graduated high school about 3 years ago and have been sitting at home, just living off of my parents ever since then. Been struggling a lot with depression also and that's why I never really got around to starting to work, but I made some progress in that regard and even my therapist suggests that it's time for me to get any random job just so I get out of my comfort zone.

But I'm way too deep in this childish "But I don't wanna work" mindset that I honestly have no idea what to do at that point. I can't simply "just do it" either, as my parents keep telling me. I totally would have gotten a job already if it really was as easy as that to convince myself.