What is your goal? What do you need to achieve your goal? If your goal is medical school, your highest priorities should be a high GPA and the acquisition of the knowledge needed to score well on the MCAT followed by an excellent performance on the exam itself. What else you do and how long it takes is less important than those two things. You can't make up for a poor MCAT and a poor GPA by having 10,000 hours of patient care experience. If that were the case, every 40 year old nurse's aide would be successfully applying to medical school.
Speeding through school is like speeding down the highway. You might get to your destination much more quickly but it is also possible you may be slowed down or completely stopped by a crash. Proceeding with caution and care is best.
While grades and scores are important, there are other things you should be doing to make your application the best it can be. One of the things is having a life outside of work/medicine and a means of dealing with stressful situations and decompressing. While it isn't a priority of most med school adcoms (yet), developing good health habits including time for exercise and good sleep hygiene are important for your health.
It would help to know more about you, OP. Are you a recent HS grad, a vetern, a career changer (from what), or a college student who recently changed direction (or something else entirely)?