Thanks for the advice guys!
I braved it about a week ago and took my camera and went to a touristy place in London by myself. Took it little while to then take my camera out actually take a few pictures, they weren't particularly good, but I think having that experience of just taking pictures without caring that other people might see was good for me
And that place happened to have quite a few people with DSLRs so after a little while I didn't feel so shy.