Hi, I'm sorry to hear about your mum, she will want to see you do well so if you can you should continue with the access course.
I work full time as a Physio Assistant in a hospital, I raise my small son alone and I fit in my access course. It is difficult at times, sometimes I don't feel like studying when Iv'e had a busy day and my son has been a pain but I know the end goal is going to be worth it.
I study distance learning so I can choose my hours and fit it around my commitments. The uni physiotherapy course I want a place on has great competition, in fact they only have 10 places I decided that I would aim for distinctions from my access course to put myself in a great place to get offered a place. So far I have had mainly distinctions with a few merits.
Basically, it can be done, no doubt it will be difficult at times but if you keep your goal in mind i'm sure you will do well on your course and get to uni.
x