Hi Ajyoakum
I worked on my PhD part-time for the first 2 1/2 years, and have been full-time for the past year, so have experienced both. The hardest thing about doing a PhD part-time and working is just the time - it's hard to get a decent chunk of time to study. By the time I'd gotten back into it each day, it was either time to go to bed or go to work. I'd try and get up at 5.30 and study for a couple of hours before work, then do a bit more after dinner at night time and also on the w'ends. It was incredibly hard. You really do need large chunks of time to think, let alone do the actual research. Eventually I started to work a 4 day week, which was better as I still got paid enough and had more time to study. Then I went to full-time study, which is good as I have loads of time - but am pretty poor. Doing a PhD part-time while working full-time is difficult, and you need to be really driven. It wears you down. But it can be done! But you should also factor in some time to do your studies full-time, especially when writing up, and I really don't think it's possible to do the last stages of the PhD part-time, you do have to write and think and focus on nothing else. So, have a think about saving up so you can take a few months off to finish.