Zero experience bouldering, heaps of experience with agoraphobia and anxiety. In case you don't get enough help here, and if your anxiety is up to it, you might have some luck emailing the gym? I find that I can do that because then they don't know who I am. Also, if you have the cash, would you consider taking some lessons? Then an instructor would hold the ropes for you, and I trust people whose jobs are on the line more than strangers. A group lesson can also be a way to meet people, but it took me a while to get up to those kinds of things.

Good luck, though!

PS: This is not a daft post. Taking constructive action to get out and do what you want to do instead of staying home, in spite of anxiety, is an amazing skill. Too many of us lose it, and it's so hard to recover. So. Not daft! More like inspiring.