I don't know that I have ever started new hobbies during mania. I have quit jobs to travel internationally. I also started up old hobbies again (i.e. starting ballroom dance classes, ballet, modern dance). Another thing I've done is to start taking either adult or university classes again. All too often I would quit these things prematurely. Sometimes at home, I would start organization projects or extreme spring cleaning. A couple times I got ultra religious and became very involved with the Roman Catholic church.

I was very project-oriented at work, and created my own, most of the time. That was beneficial to me, for the most part, but would sometimes become overwhelming, so then my behavior became out of control/inappropriate. The last major project I created at my former job was a behemoth, and I did a large portion of the work myself (design, analytical tasks, writing, data input, work with IT.) I really doubt that anyone else could have tackled so much. The problem was that I crashed severely when it was done, and then became unable to do any more of my work. It ultimately disabled me.