I don't think you necessarily need to apply to a lot of schools. Just do your research and apply to schools that you believe you have a good chance of getting into (average GPA is around yours, Average GRE scores are ones that yours fall into). I have a 3.6 GPA, a 305 V/A combined GRE score, and 4.5 on writing and was accepted into 2 out of the four schools I applied to. It will save you a lot of money and stress if you just pick a few schools that you feel you will most likely get accepted to. I only applied to four because I didn't have a lot of money to spend on application fees but if you have the money and don't mind spending it on those fees, then apply to as many schools as you want!