How long did you stay at your clinical job?

I recently started a medical assistant job, and am planning on applying next cycle. I have been slowly studying for the mcat, but it is so difficult with a full time job. I am thinking about quitting at the beginning of february, studying for 2.5 months full time, then taking the mcat mid april. I will have about 900 hours of clinical experience racked up by then. I just worry that leaving a job that soon is not a good look? I know I need dedicated mcat time because I can barely keep up with the 2 hours of anki right now. will adcoms not like the short amount of time I spent at this job, or do they look more at the hours and experiences I got out of it?