Do you have a therapist or someone to talk to who will give you the ability to just voice your thoughts without judgement? If not, I highly recommend that you seek one out. If you have one and are unsatisfied, you should find a new one.

In the meantime, I am not sure you have hit rock bottom. Rock bottom is where you realize that there is a way up from here. You are still looking down into an abyss. Still, this might be the point at which you change your life. Start by changing your perspective. Every day, you have taken a step towards where you are now. Were all of those steps fumbles or mistakes or failures? You wouldn't be where you are if that is the case. There is evidence of success. What are those successes? How did you deal with adversity to claim those successes? There is evidence that you have overcome challenges.

From another angle: right now you have a good job and a career and you are depressed. If you take a menial job, you will probably be unsatisfied, broke, and depressed. If there is anything I've learned in this life: No matter where you go, there _you_ are. Still you.

Lastly, start building upon and celebrating little successes starting today. Any little thing will suffice. Every little thing. Do the same tomorrow. Make your way up the chain until you are celebrating success at the scale you want.

Hang in there. You are not alone.