Most often, stories start with an “inciting incident”. This is where you both introduce your lead character and put them in a situation that pulls them out of their comfort zone. Act 2: The confrontation. If you plot your story well, the middle part shouldn't be too difficult.
To use parametric estimating, first divide a project into units of work. Then, you must determine the cost per unit, and then multiply the number of units by the cost per unit to estimate the total cost.