Lots of good options here but let me add one more: maybe you're completely fine and don't need to make any kind of career change.<p>I and many developers I know have been through a phase like you describe. This is especially true in tech, where most projects fail, and for people with wide interests like yourself. Some people would be happy writing nice code and leave it at that. But you're going to be bummed if the design is ugly, the marketing plan doesn't work, or if any of a dozen other things outside your control goes wrong. You are upset, anxious, and fearful. You attribute your feelings to objective things around you like business failures, etc. and guess that a new line of work might solve those feelings.<p>Let me suggest that maybe they won't. Those feelings are telling you something, but you can't trust your guesses about what will solve them, and you especially should not make large, life-changing decisions because of half-understood feelings of anxiety and depression.<p>Instead, try to engage with and resolve those feelings in smaller ways. Pick something small you will decide to do really well and just thoroughly engage in it. Make some new friends. Maybe go talk to a therapist or religious figure.<p>What I found out of this process was that I had made several career moves, some bad choices in my personal life, and a lot of stress by setting myself impossible goals and ignoring some longstanding things I disliked about myself. In the process, I learned that I wasn't really paying attention to the world around me and especially to close friends and family. After some reading, low-pressure work, and therapy, I understand my own feelings much better, and I derive much more satisfaction from my life outside work.<p>Of course, by no longer putting on my job the stress to define me and my value as a person, I get to approach it much more freely and joyfully. It ain't perfect, and it doesn't always work, but on a good day I can deal with setbacks and annoyances without them damaging my emotional state.<p>A therapist would call this cognitive therapy focused on mindfulness. Various religions would call it spiritual direction aimed at contemplation or present focus. There does appear to be actual evidence of its value, though I'm only qualified to say it works anecdotally. Good stuff.<p>Anyone who is interested, feel free to ask questions here or email me at username at gmail.