You may find that the market is not what you expected, or your goals are too ambitious. If the answer is no, or maybe, you should consider abandoning the project. If you do closeout the project, you need to know why it did not succeed. Some parts were successful, some were not. It is equally important to know why elements of any project succeed or fail.
Entry barriers have a major effect on the time line.
The level of market awareness by the consumer, as well as the number and quality of your perceived competitors, can severely impact the timing required to succeed. In either case these are two items that you must understand and factor into your campaign before you commit to spend your business development dollars. The bottom line in risk management should not be viewed as a negative. It is good business to know your strengths and limitations. This kind of knowledge allows you to optimize your personal and business resources.