Speed up and you will hit the wall. The most common reason people start a diet and fitness program, but fail after few weeks is the subconscious resistance for drastic changes. Try to go from 3000 to 1400 kcal in one day and from 0 to 2 hours daily training and you will hit that depression wall. I give you 10 days, at most.

Your subconscious mind is not much different from a frog: Remember this experiment from the biology class? If you put a frog into the boiling water it will jump straight out. But if you put it into cold water and start heating up slowly, it will sit there until getting served.

Same happens to your sub-mind. You will get much less resistance, if you change your workout and nutritional habits slowly over the time. And you will have a much bigger chance to keep on with the plan over longer period of time.

One step at a time, fellas. Good luck!