I don't even know why I'm on TSR atm but I saw your post and I think you should listen to this.
I've just finished first year medicine.
Stop freaking out, you're honestly being extremely melodramatic. You have more than enough experience and you know it. Just enjoy your summer and relax and think carefully about how you're going to reflect on the many experiences that you have had. Honestly, it is NOT the number of places you have gone to, but rather how you articulate yourself and explain what you have learned and how you believe such experiences deem you suitable for the course.
In all honesty, 30 weeks in a hospital is more than enough and the fact that you have done so much more won't exactly help you.
You have a limited number of words on your personal statement and a limited amount of time in your interview. You honestly don't have time or space to be making long lists of places.
Furthermore, it does not matter if you paid for the summer programme or not, they're not going to ask if you paid for it.
Personally, my work experience was:
A few months in a hospital every week (1 hour a week)
1 week in a GP surgery
A 3 day "summer school"
The fact that you haven't shadowed a doctor is fine, there's no need to stress and go through hell and high water to do that. University's understand that not everyone has access to something like that.
I didn't pay for anything, I didn't read too much into stuff online, I carefully described my experiences, reflected on them and used phrases such as "this experience made me realise that, as a doctor..." and got 3/4 interviews and 3/4 offers.
This is a key thing you need to learn before you begin your first year if you do get in because stressing, ruminating and panicking over small issues leads to unnecessary stress and burn out.
I'm not trying to be harsh but if you care or have any questions then just message me tbh.