Hello dear I can empathize with you...see if we try to hold the sand in hands it slips out..ok...It's her choice to take decisions of her life..whether you like it or not.. getting me..and same applies for you..so rather then brooding over that ...start thinking positively that you will meet someone who will be able to take care of your feelings in a better way.. focus on hobbies that you missed while in relationship..be close to your parents and siblings and friends... Exercise regular meals and sleep well will help for sure.. Consult a Psychiatrist if required..you can try direct Consult option via practo..goodluck