Hi Allanon. Sorry it's taken me so long to spot this. The interview board isn't one I look at very often.
The answer to your question is yes, I struggled. But to begin with there were no publisher deadlines to worry about, so the only goals I had to meet were my own. I've always been pretty disciplined, so I wrote most nights even though I was exhausted. My wife was pretty inspirational, as she was working harder than I was and still managed to squeeze in winning awards for her degree exam results that she was studying for in the evenings. I guess we were both fairly motivated individuals.
Don't be too hard on yourself, though. Try to set aside time on a regular basis to write, but if you have to rearrange it, or even miss a session or two, it doesn't matter in the big scheme of things. So long as you commit to it ... and enjoy it, then you'll get there in the end. Good luck with the writing.