Please help me, i'm rock bottom!?

ok so in the last 7 months crap had been pouring from the sky on me! it started when i split from my mentally abusive boyfriend 7 months ago, we worked to gether so i decided to go travelling for 2 months, but the whole time he was texting and emailing saying he missed me, he loved me and that i was his soul mate, when i got back to uk i went back to work with him. still he was all i love you i miss you and want you back! after 3 months of being played by him, i fond out that he has been sleeping with my friend since before we split up, she also worked there! this crushed me! so i had to quit my job as i couldnt watch that! i havent worked since, not i have just lost my home! all i can think about now is how he has everything i wanted, he has his girlfrend, job and house all cause he hurt me so bad! i need to let go and move on but i;m so low i dont know how, i lost everything in 7 months! please help me out of my hole, i cant stop imadignine them so happy together and its killing me! x