This also manifests in things like not starting a project because I don't understand the topic well enough, don't know how to use the tools needed,  and just get overwhelmed in the preparation phase.

These projects are not limited to hobbies though, and that's what's scary. When the project is my life, and the tools are socializing, exercise, career goals and achievements, relationships, etc., I feel so overwhelmed and confused that I end up doing nothing. But the project is ongoing, and even doing nothing is failing.

I think I might be a bit of perfectionist, and if things are not done right I might as well not do them at all. I also have low self-confidence, which means that I don't trust myself to dp things right.

So here ot is, the perfect combination for constant anxiety.