Tapping into the person you are wanting to unleash is actually a fairly simple (not easy) process.
First, you will need to set an intention of what you want to work on within yourself.
Do you want fat loss, ease of chronic pain, stress relief, to feel more flexible or more connected to yourself?
Don't skip this step!! It's critical part of unlocking the deep motivation needed to get through those times when your want to quit. You NEED a target to go towards!
Next is to examine your nutrition and lifestyle habits.
This is one that no one likes to do but this is where 85% of the results you are looking for happen.
You can not out exercise poor nutrition but more importantly bad lifestyle habits.
Getting more organic foods, drinking less booze, sleeping 8-10 hours a night, upping your water intake are things that really make a difference in your success. It's were the health benefits and body transformation happen.
Last is the right style of physical exercise.
Now "right style" is about what your internal systems can handle.
If your nutrition and lifestyle are poor then doing high intensity exercise will not only be detrimental, but allow motivation killing. That's because your body simple can't handle the intensity.
Starting with something less taxing on the system will give you faster and more profound gains.
Once you have a laid out process that honors these 3 things you will see the results you are looking for.