Mitchell told SELF that she aims for 12,000 steps a day.

“Walk, walk, walk, walk," she said. "Trainer Harley Pasternak gave me a Fitbit, and he’s

like, ‘If you don’t get 12,000 steps, I don’t care how many workouts you do in a day.’”

As a personal trainer, I'd advise beginners to set a smaller goal.

If 12,000 steps seems difficult to tackle, aim for 7,000 steps a day, at first, which is a great place to start for healthy beginners. For most people, that averages

out to about 3 miles.

Additionally, the Fitbit Zip is a great activity tracker to get any fitness enthusiast moving. While it doesn't have all the bells and

whistles, it's affordable and gets the job done. 

In June, Well+Good reported that Mitchell likes to start her day with meditation.

“If I have time before I have to go to work, I do like

to squeeze in 15-20 minutes of meditation. I have an audiobook that I like to follow along with, or I’ll listen to Wayne Dyer's meditation CD—it always just sets

the day right," she said. "And I also love to journal if I have time, especially in the morning. I like to set some goals, even if they’re small or

short-term goals.”

Science has proven that meditation offers a ton of health benefits. I tend to meditate several times throughout the day, even if just for a minute. One of

my favorite apps for a longer zen sesh is Calm. It's free in the app store, and the guided meditations are a great way for newcomers to get started

with their own practices.

Mitchell's trick for knowing when to drink more water is genius.

“It’s always so important to remember to stay hydrated—especially when you’re traveling. My little trick for reminding myself to

drink water is to always wear rings. I always play with them, sliding them around, but my fingers swell so much if I’m dehydrated! So whenever my rings start to

feel tight—or even worse, can’t come off—it’s like a red flag to drink more water.” (via Well+Good)

Mitchell told SELF that she tries to fit in several workouts each week.

“I try to work out three or four times a week, whether it’s boxing, cross

training, Spin, or something else," she said. "When I don’t exercise, I’m a lot more lethargic. Moving helps me get through those 14-hour days on-set!”

Finding ways to vary workouts

is key. There's no denying that Mitchell loves to spar inside the boxing ring. It's a great full body workout. According to MyFitnessPal, 60 minutes of in-ring boxing

burns more than 700 calories (data based on 135 lb. participant). Boxing is also a great sport for developing mental discipline, a trait that will, no doubt, carry over into

other aspects of life, such as school and work.

After the SELF magazine shoot, Mitchell said she was planning on going out for pizza and a glass of wine. 

"I can't be on a diet my entire

life," she said.