This is how I approached my personal statement for one of my supplemental applications (i wrote about my volunteer experience).
1. what/ who inspired me
2. what did I do about it (i decided to specifically volunteer at a chldren's hospital)
3. what were my tasks while I was there
4. what did I learn from the experience and what do you hope other people learned from you.
5. how will you apply this experience to pharmacy school/a pharmacy career.
honestly, they realy want to hear that you have leadership skills, interpersonal skills, communication skills, empathy etc, so it worked out well for me when I talked about the cfhildren's hospital
leadership = im a lot older than the children, so although I didn't specifically organize any programs while I was there, I was a leader by presenting myself as a positive role model (think outside the box)
interpersonal skills = not only did I have to talk to patients, I had to talk to hospitalized children that were patients. Things I learned from this was knowing to always kneel down to the level of the child when speaking to them. I also had to talk to nurses, doctors, child specialists to report how the children were doing
empathy = i talked about a specific experience I had with a patient
instead of mentioningin 10 millioin things in your essay, try getting down to the specifics to mold your paper and work around the specific to incorporate the "things they want to hear"
hope this helps.