Hi Song,
Dating can be so crazy sometimes. So many feelings of excitement, inadequacy, etc etc.
The thing I like to remember is this, "nothing ventured, nothing gained". Since you haven't been much into the dating scene, it's going to take some dates to begin to feel comfortable with yourself in those situations. Dating doesn't mean you have to be in love with or feel anything close to love for the person you date.
Spending time with and learning about different people is the name of the game. Until you truly know someone, that little feeling in your belly, the butterflies and all, is more along the lines of infatuation and expectations of the relationship.
Go out if you are asked, have a good time. Meet people and enjoy yourself. That's what it's all about. And I'll bet, sometime down the road when you least expect it, that right person will be there and you'll both know it
Best of luck you!
Hugssss
J