Love Struck and I need some moving on advice?

Hey everyone.. Just want some more advice. Always good to hear some feedback. Im slowy coming to terms with my break up after 3 years its been 4 months. My guy basically after all our drama longed out relationship is done and told me to move on, so Im trying to come to terms and leave him be. Its been 3 days sense Ive stopped my annoying obssessed texing, which so far so good.. But i still find myself crying day in and day out, sad, and just thinking of the what ifs and maybe he'll come back one day. I just got a new apt that we moved into together and now i feel it isnt so new anymore and has memories of him in it, Which i did not want. Any advice to help me keep staying strong , and how to make my apt. feel comfortable, new fresh..? I just still dont wanna let go. Its really heart renching. Thanks guys for help.