30 Lengths w/o Stop

Last night I completed the 30 lengths w/o stop - any style goal. It was about half freestyle and half backstroke (with a few breast strokes for good measure). I didn't record the time but as for exhaustion level, it is definitely at my baseline or right above. At 25 lengths I was getting pretty tired, but I pushed myself to finish the 30. I will definitely need to put in some good quality pool time but it's doable.