[diary] I tried to control my task at work

I often said this two point by my boss: to arm theoretically and indicate what is the way I want to do the problem. And recently I almost success to do so. 

I had decided on the way to do the task and had to prepare materials to explain it. But while making these several problems appeared. Then I needed to revise the plan but there were many ways and almost all of them were difficult to do rapidly. There was only one option that I could do relatively easily, so I thought how to make my boss to approve this approach for me to do the task in this way. 
 I started preparing myself theoretically. I searched quantitative data to demonstrate the safety of the result that will be obtained in this way in various aspects. And I prepared the reasons why I think it is not better to take the other approaches, supported by quantitative data. 
As a result of telling these things to my boss, he agreed, and we were able to discuss how to make it safer. I learned how to control my task a little.

memo: When use 'and' in sentence, if S is not shared, we use comma between these S.