Do my fingers go to far away from fretboard?

I am practicing chromatic patterns with a metronome on my guitar, and i noticed my pinky especially comes way off the guitar. i Get tired quickly when i do these excersizes, first my thumb then my pinky, ring finger, etc. i have DDt size 13 strings so that doesnt help, but should i start learning guitar over again beacause my fingerS? they never gaveme a problem before but i am trying to increase speed....