I'm currently half-way through my third year as a physics major, and I'm starting to reconsider my initial plans of attending graduate school. It's not so much my grades are bad (cGPA ~ 3.5, 3.8 so far in my third year and am will likely maintain this until I finish), but I'm just not at all sure if I could keep up at the expected pace and not flunk out along with tending to other duties such as research and teaching assistant. With all the studying I do everyday to keep up with the material, I easily average anywhere from 6-7 hours per day. I rarely have any time to do anything else throughout the school year, and couldn't possibly imagine taking on other duties such as teaching and doing research simultaneously. Basically, how can one be sure that they could survive graduate school before actually going? I don't want to expend so much time and effort only to find out graduate school isn't for me. Should I start considering other options at this point?