Do i need to wax my snowboard?

so after snowboarding a few times last year, i finally bought my own snowboard..ive only used it once but il probably use it this year 2 or 3x..well my question is do i need to wax it before using it again?? and is it really important to do it? is it going to damage the board if i dont?i also heard it slows you down if u dont, although i really dont plan going all fast on it...im just getting the hang of it..hehe. thanks!