I destroyed my life for you

I gave up my job and my life to be with you. I dedicated myself to taking care of you and loving you and you repay me by breaking my heart and kicking me to the curb. You act like you don't know me and we were together for three years. You turned me into the bad guy. I had to move back home at the age of 23 and still haven't found a job and feel like such a loser. My narcissistic parents let my narcissistic teenage sister treat me like dirt and don't do anything and I no longer have you around to shut it down. We were happy and you loved me now you don't care to know me. I just want this nightmare to be over I'm sick of crying all the time.