055166k - I to used to be a milkman - for 5 years! I was also a lorry driver for a lot of years plus various other jobs including building labourer, roofer, market stall seller, odd jobs person etc etc.
There were only 2 of us on my course who didn't have a degree and we both got through first time whereas others who were educated up to Masters level failed.
Academic achievement is no guarantee of success; hard work and keeping your head down may not guarantee you a pass but will set you on the right course (pardon the pun!).