Maybe open up a new Word/Notepad document and type out what your passions are, what you want to learn more about, the things that you are interested in finding out more about etc then look online for free courses about each of those things and make a list of the ones you want to take. Then type out an aims/targets list with each of the courses you've found and work through them one by one.
You will prolly find that you don't get any kind of qualification from them because they are free, but every one you complete can be added to your CV.
Now use that list of passions and type out a formal paragraph saying what they are and why you feel so passionately about each one. Add that paragraph to your CV.
If you know how to make a website, put that on your CV and add your list of courses as hyperlinks to the page.
Put a list of previous jobs and qualifications on your CV with a paragraph explaining each one.
At the end of your last job, put a single sentence explaining that you've been ill since you left your last job, but you have been working on improving your health and skills and what you feel you can bring to the job you are applying for. Put the positives about what you've been doing and how you feel that you are a more rounded, understanding, compassionate person who could bring a lot to the company.
Really talk up the positives and barely mention the negatives unless they specifically ask for it and even then make the negatives as positive as possible.
You can do this Lost, believe in yourself and really focus on the positives!