Well, the chances of getting into a program that starts this fall are pretty slim, so I hope you mean next fall! Most schools require applications by February of the year but sometimes as early as December. So if you’re looking to go Fall of 2015, I’d start looking at those application deadlines right now! Many schools require letters of recommendation, GRE scores, and essays - you’ll want to have all of those in line before you start applying or the anxiety will start piling on quickly!
In terms of getting in, I would try to gain as many experiences in schools as you can…including contacting a local school psychologist and asking if you can shadow a few times. Working in schools or volunteering in schools and having an understanding of what school psychologists do and why you want to be one will be extremely valuable. We have incredibly unique positions within a school system and are called on for a variety of reasons. Flexibility, organization, and trustworthy are important traits to possess….people tend to treat you as a sounding board for any and all issues and they want to know you will provide advice and can be trusted. Communication - in person, on the phone, over email - you have to be comfortable with it and this is something that you will likely hone in on in grad school.
School Psychology grad school tends to extremely intense (not that I’ve gone through other grad programs) but from my own experience we were constantly reminded that we were becoming experts in two fields (Psychology and Education) and with that, added intensity! I worked in the summer and did occasional nanny work during my program but anything more really seemed to interfere with the program (from what I saw of other individuals in my cohort). They really do demand your full attention throughout the three years.
Apply to at least 5 more schools then you were originally planning. I know my program had over 500 applicants and accepted 10…they’re competitive. When applying and writing essays and eventually when you go on interviews, make sure you know the faculty and their concentrations for each individual school as well as what their overall approach to the school psychology program is, being able to talk confidently about these things will go a long way to an acceptance. You have to be likable and you have to like working with people. Also, it’s always good to have a little humor. This job requires it!
Lastly, the NASP (National Association of School Psychologists) has tons and tons and tons of valuable information. You’ll want to check here for hot topics and get a good understanding of where this field is at and where it is heading. You’ll want to know about MTSS, differentiated instruction, curriculum, and what it means to make a data based decision.