I know here in Canada anyways, sometimes unemployment will sort of bend some of the rules depending on the circumstances. Not sure about in the US tho.
I am sorry you feel like you have lost your hopeful entrepreneurial spirit

I dunno, but I get a feeling for you that it will not remain that way. The talk about loosing interest in it, and the motivational tools, the friends with this similar interest. Sounds like depression speaking. Hopefully once you are less stressed your hopeful spirit and motivation will return.. I am kinda thinking it will.
I have been following your threads about this job silently, I don't say anything because I am on disability and don't have any real life advice for careers or jobs. However, I agree I don't think the sense of relief is weird. I think that happens to a lot of us when we start moving in the right direction. Sometimes change is hard, stressful, challenging, but also the right thing.
I hope you get back to your dreams, and start feeling better. Hopefully a good opportunity will show up. They often do when least expected.