lost on time

As someone who is awful with less than 45 minutes, on the clock, I see you play a lot of 15/10 rapid games. I've been playing them and those 10 seconds/move have saved me a couple times. I try to keep at least 3 minutes on the clock so if I have to think for a couple minutes I can do it.
My last game was 112 moves and needed those 3 minutes in a couple crucial points - then I had something like 9 seconds left when I made a couple moves in the 60's and 70's. I managed to pull out a win in a drawish position when he violated the Rule of the Square in the endgame and couldn't get his K to my passed pawn.