"I think we already know the answer but we're so busy searching for something new. But if you just trust that you know what to do and you continually listen to your body and keep changing the routine, trust that change is the key," said Ky Evans, a Pilates instructor at the studio MDR.
Evans says your body evolves constantly, so change up for the better.
Just pacing yourself, you know moving up and down slowly, steadily. Don't go in there and just attack it," said Breakthru Fitness owner Phil Dozois.
Dozois gets his clients to work hard, but too much too soon equals injury.
"If you can't do 10 push-ups, do three. Next week, do four, do five. Don't try to go in all out. The goal is the long haul. It's a marathon, it's not a sprint," Dozois said.
His wife Michelle, also a fitness expert, says don't go it alone.
"Find a buddy, find a partner, find something more than I'm just going to the gym and I'm going to work out every day. You want to have a little bit of a plan," she said.
Beyond fitness, remember this tip from chef Evan Kleinman of Angeli Caffe - good food should be enjoyed, but in reasonable quantity.
Kleinman advises to eat less meat. She's now eating a quarter of the meat she used to and will buy from quality ranches, meaning it's a bit pricey so she goes sparingly.
"My diet is a lot of vegetables, a lot of olive oil, lighter, lots of salads," said Kleinman.
Finally, you've got your body and your mind in on the program, health expert Gary Kobat says get your spirit into this game for the long haul.
"It's all about being loving to yourself, and when you bring that love and compassion to yourself, all sorts of amazing things start to happen after that. Your health and your wellness and your aging can't be priority No. 7 or No. 9," said Kobat.