[bluenose69]

You begin by saying you're eager to quit, so I will take that as your true desire, and those first five words are enough to advise you to quit. Nothing in your query suggests that you are enjoying the work or look forward to continuing in the field. Given the negative sentiment and the lack of positive sentiments, the case seems quite clear. Quit, and get on with your life. Chalk the past three years up to experience, and set about enjoying the next three years and the years after. Life is short, after all. Find the thing you love and are good at, and don't worry about the fact that you didn't finish this PhD.