The sting of social rejection goes deep and many of the same pain circuits in the brain are activated as when we feel real physical pain. Give it up and you will suffer much less, I can assure you of it.
If you want to learn about practice there are a ton of very good university sites these days with free online instruction, try an 8 week course and follow through with assiduous practice (exercise), if you have a conscience it will grow it big time and in a hurry too, and with the benefit you will emotionally process your experiences here and remove some of the pain. Beware though, it will shrink yer ego into nonexistence if yer normally socialized and aren't brain damaged, just like it yer conscience will hurt like Hell, that's what changes behavior and people. No free rides here either.
Consider this free advice, the practice is given away too, only professional medical practitioners charge, or should.