Yep, don't tell her first. she has to come up with it. And if she tells you first, and you don't say it back, she'll be pissed like hell. Love is a hard thing, but when you feel you're in love with her, wait for her to tell it, and say it back. If you truly feel that way. You might think you're in love, but when you think about it...Do you really love her? would you make sacrifices for her? would you jump in front of a car for her? would you give up your principles for her if she asked you to? Love comes after a long time relationship, not after a year, not even after two year. Think first how you truly feel about her.
Greetz