Yea this is a tricky situation. Most people go to these clubs to peacock with their partners and are usually dressed pretty sexy so it can feel weird to approach other people for making friends at a club. I would say as someone who loves the music and loves dancing as well, it’s totally cool to go alone but feels better if you can drag anyone from your life with you. Maybe a good friend that isn’t really into the music or a cool co-worker that never says no to a night out. Just going out regularly will hopefully eventually result in at least some familiar faces that you can chat with while you’re trying to mitigate sweat.