So generally I have anxiety about approaching... but occasionally i get these bursts when it literally gives me butterflies in my tummy tum tum...

Are there any good ways to capture and hold on to that excitement of it, because tomorrow it'll be gone and I'll have to start from scratch?

All I can really think of is to get out there, start approaching for whatever reason and generate social momentum. Eventually some of the approaches will be genuinely positive and keep you going....