How could I get over a heartbreak?

I think you better not think about it. Always keep yourself busy so that you could take it away from your mind! It's normal to feel that way because it would take time to heal. But you will see, sooner or later you will possibly get over it. Time can always heal wounds especially that of a broken heart.

I know the pain what you are suffering from. think "this too will pass away" Just go around with new friends make new friends who won't know about your past

when i suffered from heartbreak, i usually hang out with my friends and we go to amusement parks whenever we have time and i also watch some funny movies

i believe there's an expiry date in every relationship (whether it's friendship, kinship, love..etc) just let go and get on with ur life. u will probably be better off without him. he's affecting u too much remember nonbody's indispensible in this world. lastly, happiness is a choice u made and not a charity from others.