you can try asking urself if u love who you are.
if yes, there u go. u haven't forgot the feeling of love.
in order to gain love from others, firstly u must love them.
try to make friends. real friends. not those kinda of friends
who appear like they will " use " you.
who knows. maybe a best friend or someone special might be just
nearby. or even already by ur side, just that u nv noticed.