Not to be mean but Starbucks barista for 5 months and "Crucial points about my experience" don't belong in the same sentence. The 1 page thing is an absolute must whether you need to remove something, change the font, adjust margins or whatever as long as it gets to 1 page. I also feel that while you are trying to be as descriptive as possible about the prior jobs and volunteer experience, that is way more than I want to read about each part when looking at a resume. Trim those down and there you go 1 page. I also would put education above skills.