Scared of the gym

Hi friends! I’ve been doing FB workouts for 2.5 years, and consider myself capable and active. I am taking part in a study, and as part of it, I received a free gym membership for 3 months. I love working out at home, letting loose alone in my basement wearing old clothes with only Kelli and Daniel there! I am ready to go to the gym and know there will be some good equipment there to challenge myself in new ways. However, I feel a little nervous to work out around others and have already delayed my first visit a few times! What if I look dumb or do things wrong? What if everyone there is all buff and judge-y? I hope you all can share some advice to help me drum up my courage and go!