how do i root my samsung galaxy prevail?

i was never able to figure this out. whats the easiest way to root my samsung galaxy prevail? i cant do any methods to where i have to plug my phone into the computer because i don't have a compatible usb for it so if there is any other forms of method to root my phone please let me know because i am dying to get rid of these apps on my phone that i don't need they are taking up a lot of memory. help :(