Advice on feeling happy and getting over the most amazing person ever?

Hi im a guy so its not exactly the same, but everything else about your situation and mine is exactly the same. ive know this girl for about a year, and shes my best friend. and i feel pretty much exactly the same about her as you do about this guy. she knows i love her, and she just doesnt feel the same way. and i havent ever cried about it, but i feel genuinely sad about it too. the only reason i have to get over her is because it would be the best thing for her, just like you. So i dont necessarily have the answer to your problem, but what helps me is talking about it and spending time with my other friends. try not to think about him, but just give it time. Im 15 btw so were close in age so i understand you completely. im right here with you :/ if you ever need/want to talk about it with someone who understands just send me an email or something