Making a decision to do something – this is the first step. We all know that nothing moves until someone makes a decision. The first action is always in making the decision to proceed.
The best way is to develop and follow a plan. Start with your goals in mind and then work backwards to develop the plan. What steps are required to get you to the goals? Make the plan as detailed as possible.
Commitment is something that comes from understanding that everything has its price and then having the willingness to pay that price.