I just dress just as I like and bleach my hair! Just finished growing my hair so I can do a different hairstyle. Know what you mean though, enjoyable in a way but these do's categorise you. Love my daughter's band's 'gigs', but find it a bit too noisy and sweaty these days, so that makes me feel a bit old, too.
Went to a friend's 70th the other year - she was spilling her boobs out of a long, slinky, glittery dress; had dyed her long hair scarlet; looked just great and had fun! Keep on trucking!