Oh no please don't change just because you think it will attract more men. I don't think there is a guideline to how you should dress or behave at certain ages. I wish when I will still have the energy to go dancing when I am in 60s. If they don't reply it is their own loss, so I wouldn't be too bothered about it you will meet a 'good' eventually :).
RE: is my profile sad???!!!!!!!!!!
Hmm maybe have pictures of you smiling :D ?