I cried today 'cause I don't know how to kiss.
Aw, how did that make you cry?
I'm so bad at kissing. I wanted to kiss my girlfriend a long time ago, but I choked for a whole year. Now she's the first one to initiate a kiss and I still can't deal with it.
There's no reason to cry because you aren't good at kissing yet. If you keep practicing with your girlfriend I'm sure you'll get much better at it. It's not easy to be good at something right away.
Should I really tell her about it? It's quite wimpy to think about things this way.
This is a situation where you should be honest. I'm sure she'll understand.