I realllyy like this upperclassman?

No matter what anyone says it really depends on the situation (Since you know best) Just be yourself and have fun. I'd go to the party, just be careful. Since your new to the whole High School thing, you might be shocked about some things. Your not in junior high anymore. Try to get past your feelings for him and see about his character, who he hangs with, etc. I'm not trying to scare you, just hoping that you don't get scared too because something unexpected happens that reveals who he really is. Maybe he's a good guy, I don't know, but it never hurts to be a tad careful. Especially since you've only been on the high school scene for a few weeks at most. I'm a junior too and there have been some freshman that have caught my eye. So if that makes you feel better. It's possible. Just be yourself. If he doesn't like you for who your are then feel free to scratch him off the list. If that's not good enough, then nothing is. Just know your on his turf. Hope I helped. Give me feedback if you feel like it. I'd love hearing from you and how it's all going.

P.S.- try not to take what I said too hard, just don't want you get hurt left hanging, that's all. I actually care.

I generally don't think freshman should be dating higher than 1 grade level. Things just seem to get complicated if they do. The older boys have more experience, and often times the younger girls don't, so things, as I said, get complicated.

If you're intent on trying to get this guy to like, though, you need to act yourself. If you try to get him to like you, nothing good will come from it. If you pretend to be a certain way to make him like you, it will mean nothing, because in the end he would have fallen for a girl who doesn't exist.

Be yourself, or don't try at all. The second you start TRYING to get someone to like you, it's almost 100% reality that the relationship will end in misery.