Advice on expunging my legal record for cheap?

Finally after a long wait I'm almost at the finish line, my criminal charges for drugs are finally ready to be off my record. But my lawyer says it will cost $2k, and it's hard to find a good job with a record so I can't exactly just cough up that kind of money easily. They said I can do it myself but it will often get rejected without all the extra paperwork and stuff they do. I just want to be able to clean my record and move on with my life. Does anyone have advice on how to get this taken care of for little to no money?