Thanks haha! Honestly, I didn't think I had actually done very much until I sat down and actually thought about it - and yours doesn't sound too bad yourself!
Regarding work experience, I don't know whereabouts you are, but my advice is that you can often find lists of doctors/consultants on your local hospital trust's websites - along with some useful email addresses and phone numbers! Seeing as you're 16 now (I think), you can definitely go in an shadow at least, or follow a junior doctor doing ward rounds which I did in August, so call them and keep chasing up emails until you get a reply - but obviously make sure you're polite and not too impatient!
I too found it a bit odd that some universities specify that you need two weeks of work experience, but I think this might include any experience in a care setting - again, need to check with the admissions office!I think any experience you have in a care setting would be valuable - so the Lourdes Pilgrimage definitely sounds like a good idea
My best bit of advice when you're doing clinical or any kind of work experience is to take a notepad and just jot anything interesting down - it'll help you when it comes to interviews hopefully, and you'll able to reflect upon your own thoughts and personality afterwards which is actually quite nice! Obviously try and enjoy it too! I think medical schools do accept that it is hard to find clinical work experience, but nonetheless, keep trying and if that fails, volunteering in a care home or rehabilitation centre is good too. My theory as to why universities want you to have work experience is to help you make sure that medicine is the right decision for you, and observing and experiencing it hands on - even for a short time may either change your mind or make you even more determined to pursue your goal.
Good luck applying for work experience - oh and check that your school/college doesn't have links with the local hospital already! You can also try speaking to your GP who might not let you shadow them specifically, but will certainly know doctors in your area who you can speak to