You can intersperse first person and second person. I often do first person and mix it with second person. (I also switch from first-person singular and first-person plural.)
My soon-to-be published book called Unleashing the Writer Within is such a mixture on purpose. I tell my experience from my perspective, do a break, and switch to second person. Here's an example:
In these examples I've presented two needy, negative-impact individuals. Their inner privation shows in what they write.
But then, all of us express our neediness in what we write. I used those two examples because they seem obvious.
Think about your different strengths and weaknesses. Let's start with the premise that the two terms are opposite sides of the same issue. Your power is also your drawback.
Although I've written in the previous chapter about the reasons for writing, I still come back to one significant fact. If it's not part of your commitment and your divinely given talent, you won't pursue it: Write to find out who you are.
When I wrote in the first-person singular, my purpose was to tell them something about Cec Murphey and his experience. I shifted to first-person plural when I wanted to wrap my arms around writers and say, "This is how all or most of us feel."
When I want to instruct, I shift to "you" and it feels right to me.
Before you choose POV,
make certain you understand your purpose.