Hoodsport Mechanical review: Brake job replacement

After having my rear brakes replaced at Hoodsport Mchanical, I started having trouble with my brakes dragging, I went back to shop, Kevin adjusted the emergency brake, didn't make anything better. I took it back to him 4 times with no good results. My brakes were dragging He also replaced the brake fluid with the old same fluid. The fluid is contaminated and needs to be replaced. I am afraid to go back to his shop. I don't know what to do. I paid him $800,00 cash, because thats how he runs his business. I drove for months before I could get him to replace the caliper, he finally replaced the caliper but did not bleed the brakes, he sent me down the road with hardly any brakes, air in the line driving up and down a 3 mile hill. One time driving down the hill scared the hell out of me. I feel taken advantage of, I couldn't drive my vehicle after that until a neighbor came over and helped me bleed my brakes. Please help me resolve this ongoing issue. I am afraid to drive my vehicle.