Waves at @Marlboroandmalbec34 
Op, (and anyone else watching / lurking)
As a pp has said, we only get one life. Personally, I'd rather die regretting something I did do, rather than something I didn't..
If you do decide to go, no-one will make you do anything you aren't comfortable with / don't want to do.
No means no in these places, and if someone doesn't get the message, don't hesitate to report them to the staff / management.
If you can't stand the thought of going alone, go with a friend / partner / fb / fwb ,me, but make sure you have discussed things beforehand. Ensure you are both on the same page, have agreed what's in, and what's out, and stick to it.
Absolutely do not worry about your looks / figure / age / whatever. As a pp has said, there are all shapes, sizes and ages going to the clubs.
One or more females will definitely get attention (even in a mixed sex couple) - the same is not true for single guys 
Treat it as an adventure. You will meet all sorts of people, some of whom could become life-long friends.
By all means, feel free to pm me for a male perspective.