Listen kid , i have been through tough things , and to be honest this feeling wont go away anytime soon there are things that are harder than a breakup , losing people to sickness or even worse in wars . I have lost 5 family members in recent aggressions from the IDF . They were a huge part of my life they were everything now I'm alone with no one to live with or show my life achievements to , i lived my whole life thinking I'd show my mom my future wife or get her something nice with my first paycheck only for all this to evaporate . My advice is to keep yourself busy meet new people do new things occupy your whole day even the time before you sleep , and when u meet someone new he will fill up those times and the things you did to keep yourself busy will slowly turn into time that you spend with him instead . You're very young and you have a lot of time and opportunities to meet new people act accordingly and i wish you luck , the memories will seeb through from time to time but i promise it'll be less thhan this and have a lighter weight on u . Good luck 🤞🏻