Hi there,
1)Can you maybe go back to college and do an a level in a year? or some as levels ? most unis will accept social sciences like sociology and psychology as a science as well and maybe able to get it free as your still 18.
2)Points wise you may be able to get into adult nursing through clearing but if you want to apply to unis they average points is 260 at least.
3) Have you thought of doing an access to nursing online they tend to be cheaper mine is under 1000 and i pay monthly installments while still working, you need to be dedicated but it will help when you get to uni and provide you with better skills.
4) Have you tried applying? I applied and the first time got an unsuccessful but when i applied the 2nd time i had learnt what they were looking for and was successful, I managed to get an interview over people with years of experience. I would maybe get in touch with your local hospital and ask them if they need volunteers as my local one need dining companions and help taking people to appointments. Also try think outside the box maybe local charities , or gps , community nurses. I am a volunteer girl guiding leader and unis and my employer were very interested in this.
5) Hca apprentiships and cadet nursing normally start at level 2 then go onto level 3 i think
Hope this helps