another thing to keep in mind is that

> try to talk to someone > run out of things to talk about > feel awkward or dumb

is not really a bad outcome, physically speaking.

IMO ost people's anxiety about things X is not "fear of X" but rather "fear of fear" or "fear of embarrassment": they'll avoid something because it could go wrong and then... what? what if it goes wrong? nothing physically bad happens except that you're uncomfortable for a moment. But it's your subsequent reaction to the discomfort that is the actual source of the issue, not the discomfort itself. Which is why a lot of progress on anxiety can be made by focusing on the response: find ways of practicing being in the situation and being uncomfortable to a survivable degree such that you can learn to not be averse to the situation and can thus start adapting to it.