Am I too small to row?

no of course not!!! if youre powerful, your coach may put you in the bow or the boat, farthest away from the coxswain. you would be the motor for the boat basically. i started at 110 lbs. an 4' 10" and i was put in bow. as i bulked up i moved to the midddle. and then i lost weight and hurt my knee in track so i moved to the cox's seat. he may put you there. it all depends on your power and your coach. good luck though!