Your story reminds me a bit of myself, for a good few months, i wasn't happy, i hated my work, my family and everything seemed o be against me. i took to taking speed before and during work, i would buy large amounts, just so i could have some for the weekend but it never lasted. I couldn't sleep coz of the speed, and in the mornings i had to rack up to function. it was a savage cycle. i don't think it ever got to an addiction, but it was certainly a major problem. In the end, i quit work, moved most of my money into a bank account that i couldn't get easy access to, and deleted my drugdealers phone number. It was a messy few weeks after that but i'm over it now, i still take it now and then, but i have mates looking out for me if i do too much. Best of luck.