Best route to healthcare science for a non science graduate

I would really like to work in the more clinical/scientific side of health care but I have a non science degree and no science A levels (I understand it will be a lot of work to achieve this). Due to a confluence of factors in my education I also only have one science GCSE. I am currently self studying mathematics and chemistry A levels with the idea of entering as a private candidate and it is not going too badly. However there are a lot of different options, most of which seem to be financially tricky, so I was wondering if anyone had any experience of doing this. I am quite interested in doing a healthcare science degree, but it doesn’t seem possible to do this part time so funding would be a problem. I plan to gain more direct healthcare experience in the near future. Are there any options or opportunities for me at all? I am interested in most specialties, although hopefully with more work I’d be able to narrow this down.

Thank you for your thoughts.