You may need more time to heal if this just happened. Put away everything that reminds you of that person. Fill your days with other things and people. You will stop hurting one day, believe it or not. One day, you will be glad you have those memories.
3 steps: step #1: talk about your feelings with someone you trust. Dont take step 2 until you re ready. Step 2: stop thinking about the two of you being a couple. Dont take step 3 until you re ready. Step 3: be that person s friend.
Time will help you get over the person but in dat meantime you have too find someone else and be willing too talk to that person and be,willing to forget about the,other person and think about the new person