At this point you have created a vision of the end result, analyzed your alternatives, identified and mitigated your risks, made contingency plans and distanced yourself from short-term emotions. You should also understand the constraints that limit your choices (e.g. “I can’t move from my current home”).
It is now time to make the decision. You will compare all of your alternatives, with an understanding of the range of outcomes and risks, and make and commit to a decision with confidence. There will be no need to look back with regret, no matter the result, because your process was sound and you made the best call based on the information available to you.
At this point you should prepare a timeline of major milestones. These are significant points in time where something (good or otherwise) should have happened by then and you will use those milestones as opportunities to evaluate your decision and make course corrections if necessary.