It should be obvious to you by now that in order for you to include such wonderful accomplishments in your statement you need to have achieved them. This point cannot be over stressed - get involved in psychology outside of the classroom as early as possible. Also be specific when it comes to your goals. Express specific academic interests but also convey an openess to learn new things about the field and career choices. It is a good idea to apply to schools that have faculty with interests that are consistent with yours.
Many graduate programs admit students into specific labs with a specific faculty member.
Study the graduate programs you are applying to. Know who the faculty are and their interests. Return to top. Strong letters of recommendations from professors who know you well and from professionals you worked for can be extremely helpful. The best letters come from faculty members that you have had considerable contact with, especially if this contact was in a non-classroom setting such as in a laboratory.