Trying to stand out on your personal statement is not really helpful as you’re not selected on the basis of anything you do pre-interview. With UCAT cut off points, the personal statement is diminishing in importance. To put it this way: I had thousands of hours of clinical experience but I have lost out at some of the places I applied this year to people with barely a week’s experience (if that). The amount of experience you accrue or even some stellar, one of a kind experience will not make a difference to you being selected for interview. And if you get to interview, straining to impress your interviewers and stand out can easily backfire. A simple, straightforward and honest application where you can demonstrate consistency, reflective skills, a caring approach, responsibility and moral maturity is sufficient.
Everything you’ve got planned fits with that goal. Keep a diary of your experience and reflect daily on what you’ve learned. Try to participate in things that you can specifically evidence like Duke or Edinburgh, where reflection and development are part of the process. Look at interview questions along the lines of “tell me about a time when you” and fit your experiences to those and practise the STAR technique. And give yourself plenty of time, but not too much, to prepare for your UCAT.