I want to kiss my friend
Do you think the feeling is mutual with them? Do you have other people you're wanting to kiss?
I'm not attracted to anyone else.
Before you try to kiss your friend, it's a good idea to check for certain that they feel the same way before you act. Talk to your friend and find out if they want to cross the line between platonic friendship and romantic relationship.
Never mind, they're not interested.
I'm saddened for you to hear that, but I do hope you move on from it and just find someone else who you can kiss and would consent to any other sexual activities you may want to do with them. Try to install a dating app and you may find someone there that you will be attracted to.