are you still reading this OP? I could have written your first post like 10 years ago (except for the URM part). I liked school, was smart enough to get into a great university, but was depressed/unmotivated and sucked at follow through. After undergrad I worked on a political campaign through the general then was totally lost on what to do. Ended up at a management consulting firm. Have done very well at a job that gives me a lot of quantitative feedback.
A few things - you need to get looked at for ADHD. "Head in the clouds", depression, all red flags for that. You should also look at a job in media. There are a lot of great companies that would hire you to do policy/advocacy work that you might not be thinking of (vox, politico, etc).