I ask the same question to each bloke I speak to.

"What stopped you from achieving your goals in the passed"

Answer:

"I got bored in the gym after not seeing results"

Everyone knows how to fit and in shape, theres thousands of different solutions on google

5 common things will come up every time:

Exercise

NEAT (Daily activity)

Nutrition

Hydration

Sleep

however, theres two things missing and without those two things your going to find it very hard to succeed.