The first few days of tackling your brand-new exercise routine seem to always go off without a hitch. But fast forward to day 10 in the gym, and if you鈥檙e like us, you鈥檙e already wishing you were elsewhere. Staying on-track is one of the hardest parts of working out (yes, even harder than minutes of mountain climbers), but it鈥檚 a mental battle you can crush if you know exactly how to pump yourself up pre-workout and keep a focused mindset once you鈥檝e stopped sweating.

So we tapped celebrity trainer, CosmoBody coach and full-fledged girl crush Astrid McGuire to spill what it鈥檚 *really* takes to reach your fitness goals. With a wealth of super fit A-list clients including Julianne Hough, the former-model knows a thing or two about getting real, long-lasting results while making workouts fun (with classes like Shorts and Tank Top Toned or Make Him Jealous Cardio, how could getting fit not be?). Scroll through to learn Astrid鈥檚 golden rules to getting the bod you鈥檝e always wanted 鈥 even on the busiest of schedules 鈥 once and for all.

1. Schedule It into Your Day: The secret to *really* transforming your body? 鈥淒iscipline,鈥 says Astrid, and that means scheduling a workout into even your most fully-booked days. 鈥淚 look at my calendar every night and think: I鈥檓 gonna have to get up, do my workout, jump in the shower, head to the plane, and then go straight to dinner when I arrive. But that way I know I鈥檓 gonna get up and do something. People say it鈥檚 crazy but then people say 鈥楬ow did you get your body like that鈥!鈥 So schedule it like you would a flight, a doctor鈥檚 appointment or getting your nails done. That鈥檚 what鈥檚 going to get the results.鈥

2. Make Everywhere Your Gym: 鈥淣ot everyone has an hour to go to the gym, plus the 15 minute commute there and back, plus a shower. There鈥檚 an hour and a half that you can get it done, any place,鈥 Astrid says. And yes, that DOES mean doing lunges in the office. 鈥淕et up and get moving! Take the stairs instead of the elevator, get squats in while you鈥檙e waiting for something to get done, put muscle on your body and tone your body. Those little things DO add up.鈥

3. Stay on Your Game at Home: Avoid the BIGGEST mistake you could make when you get home from the gym. 鈥淲hen we work out our metabolism spikes, but don鈥檛 go home and throw that all away by overeating,鈥 Astrid says. 鈥淚t鈥檚 all about balance. Have a healthy smoothie or trail mix snack with a healthy protein + carb combination before you do something a little more naughty.鈥 Always stay away from heavily salted foods, but stay hydrated and plan out a filling post-workout snack like Astrid鈥檚 go-to, raw almond butter with apples and a hard-boiled egg.

4. Reward Yourself: The easiest way to push past those cringe-worthy workout moves? Celebrate your stamina. 鈥淭he first five minutes are the hardest, and then your body takes over and releases endorphins and you鈥檙e there,鈥 Astrid says. 鈥淔ind something that鈥檚 gonna make you want to do it. If you鈥檙e thinking: I don鈥檛 want to do these burpees, say 鈥榓fter 10 burpees I鈥檒l have a cocktail.鈥 Or even: if someone鈥檚 cute next to me in class I鈥檒l step it up a notch!鈥

5. Be Realistic + Stay Positive: You鈥檝e got your FitBit, your water bottle and even your gym-ready hair. But don鈥檛 leave for your workout without a positive attitude. Cheesey, we know, but it鈥檚 the truth. 鈥淚f you put in the effort, you鈥檒l get the results.鈥 Astrid says, and a fresh attitude makes all the difference between breaking through your hardest moments. 鈥淐ome back to a workout you didn鈥檛 enjoy鈥 don鈥檛 be frustrated if you can鈥檛 do the move perfectly 鈥 take breaks along the way. And don鈥檛 panic if after a leg workout your pants feel tighter. After what may have been a lackadaisical summer, you鈥檙e adding muscle back onto your legs. It鈥檚 a first step to getting that toned, lean body.鈥

Do you have any secrets to share from your fitness successes? Tell us about them in the comments below.