An LLC is a weird type of company. It's what is known by the IRS as a 'disregarded entity' which is a fancy way of saying that it can file taxes a lot of different ways.
So, to start with, what did your LLC do? Are you the only person involved in it? Did you make any money in your first year? Did you have any expenses?
Answer those questions and we'll be able to better advise you on how to file your taxes.