I think evaluating the things that you would be excited about trying - like writing the screenplay or taking the sewing class - is a great idea. Find something (or a couple of things?) that excites you now without having a high probability of negative consequences later (i.e., quitting a job before you have another lined up). See if indulging your creative impulses helps with the boredom. Give yourself the space to alleviate the boredom before you have to go to risky extremes.

I hope you can alleviate some of this feeling.