Side note, how do people even tutor? I can barely remember anything and it's only been a month 
Tutoring requires a helluva lot of study - not only do you have to know all your stuff, you have to be able to explain it clearly and quickly on the spot. You'll have to relearn everything and probably spend some time explaining it to the mirror or on paper in detail first, especially if you're a person who gets tongue-tied under pressure like me. By now with a lot of teaching I could easily pull a Bio session on any topic with no preparation, but at the start... Occasionally you'll have to apologise that you haven't looked at a certain section of the course thoroughly enough, and ask to postpone it till next week..
(My tutoring experience was mixed - a couple of absolutely
bombed sessions destroyed my self esteem for life, but then 90% of them would be absolutely awesome and so much fun.)