Literally so stuck in life... I need advise.

So... I was dumped back in April 2 days before our 6 month anniversary. I know this relationship wasn't years long but 8 months later I still have vivid dreams about him. I am still deeply in love w him and I'm not sure why I can't get over him. It comes and goes in Phases and has caused me some serious depression and loneliness. I still push through but its hell. Ive also tried to move on and be w other people and I had to leave them because I was constantly thinking of him. I feel so trapped like I'm never gonna get over him. Tell me I'm not the only one that has taken this long? I've done my research and I'm way past due to have not been over him already. Any advise? I'm feeling so list and I wanna move on but I'm scared im going to have to end it again because I'm thinking of him which isn't fair on the other person.