I need advice/help

Okay so I have a huge crush on this guy and I need help to get over it. So he flirts with me and it's not like he's just a flirty person cause he doesn't act like that with other people. But point being a relationship with him can't work and will never be able to happen for a few reasons and it's not like I need people to tell me to follow my heart cause I'm serious it can't happen and I'm usually a follow your heart kinda person. I just need some help to quickly move on.