The first tip with regard to a new fitness program that you choose is that it should not be too ambitious, and try to achieve too much, too soon.
At first people tend to be very motivated with their program and set hard targets. They just about achieve these, but soon get disillusioned as the initial thirst for success wears off.
Therefore you should try to start slowly; with just one or two sessions each week. Only once you have done this for a couple of months and are able to stick to it should you consider adding another session.