left click, right click

my mouse on my computer at home has been acting screwy, with the left clicking button sticking so that when i hit the back button it goes back to pages or when i pull down a list, it automatically withdraws again. so this three or four days ago, i came up with a solution--swap the roles of the mouse buttons. i was surprised at how easy i could switch to using my middle finger to click on everything. when i did need to "right-click" with the left button, it still kept sticking, and so i then rerouted the right-clicking to my never used thumb buttons. again, i didn't really have any trouble using it. however, this morning when i got to school after working at home for the last three days and started using a regular mouse, i was all thumbs.