should I go up to my gym crush?

I go to a small college, and frequently go to the gym. Every time I am there I see my gym crush, who is one of the most attractive people i’ve ever seen in my life. I’ve been wanting to go up to him to talk to him. Advice? I am confident enough to approach him, but get really nervous before hand and will back out. I am afraid he will tell me he has a girlfriend or that he isn’t interested. But yolo? Give me your thoughts and if you really wanna help out, tell me how I should approach this. Thanks guys <3