I will give you a solid arrangement of things. Before you begin, we will make the arrangement and planning transparent to the boss and relevant personnel and clarify the solution, if there are multiple sets of solutions, we will clarify their respective advantages and disadvantages, and explain the reasons for the final selection of the target solution.
Report the progress to the boss and relevant personnel on a regular and timely basis during the implementation process, and describe the progress to solve the problem and the risks, do not keep the progress out of time on your own. In this way, you and your boss will not be able to see the progress. They will also feel that they have no psychological background and report the progress in detail on a regular basis, is the best way to wait for the reassurance. If possible, do not delay the project delivery date as much as possible. It means to inform the risks in advance and win resources to ensure that the project will not be postponed, however, the premise of all this is that your assessment is reliable. I personally feel that you should try to be a bad person in the early stage, estimate more time, reduce the risk of more delays, and ensure that the delivery is not postponed.
After the project is completed, the project is summarized and accumulated to share the experience.
This is some of my recent insights. The most important technology is to calm down and make these processes well, it is very difficult to make these three processes solid.