How can I stop feeling depressed?

[Fort Lauderdale guy]

I just turned 18, but feel depressed all the time about girls. I am a pretty introvert guy at first which gets hard at times and it just brings me down. I feel out of place often and just get stressed out. I try to open up and act extrovert but just feel out of place. I work and breathe with all extroverts and am bad with meeting other girls. I work at a college cafeteria on the weekends (still in high school, senior) and like this one girl at another high school shes going there next year but I have never met her before I see her all over social media but I went to school with her sister but barely knew her either. I don't know why I feel so attracted to her and she seems fairly extrovert and a big into partying. I want to talk to her but i would feel socially awkward and online would feel like a creep. I am going to a different college but we will be in the same town so it's just hard cause I like my job but know I will have to quit because it will kill me every time I see her. I try to forget and move on and focus on my own life but sometimes it just gets hard. Just looking for some suggestions because I really want to move on from this.

[Brian]

Well, don't feel like you have to satisfy the romantic impulse in the first couple years of your adulthood. You're probably (like 99%) not going to be with the girl you have a remote obsession with. She doesn't know you exist. So look for the girls who are in your greatest areas of interest. If you like chess, find a girl who likes chess. If you like history, a history class in college or a museum. Common interests are the foundation of any relationship. Physical chemistry is only part of the equation. And unless you're so shy that you never talk to girls ever, you'll probably do just fine. You'll have to be bold eventually, but that doesn't have to happen just now. It's best not to think too much about it until a day or two out.