One of the worst financial decisions iv ever made,...

One of the worst financial decisions iv ever made, 4500ish dollar loan and here over a year later I still owe 3000$ and I pay like 300$ a month! what s happening!! I also blame the company that financed me through them but this is crazy I honestly thought it was payed off until I opened a letter from them recently. I wouldn t recommend them to my worst enemy. Well maybe my worst enemy I guess.