How do I stop myself from feeling self-conscious about my writing?

I am writing a story online (it's a fanfiction). I am posting it by the chapter. I put my heart and soul into writing the story. My last chapter I can't help but to feel really self conscious about it. I took a different route than what I originally planned for my ideas. I kind of made the storyline a little more complicated for me when writing it. It's a really emotional scene and I felt proud of it when I wrote it. But now I'm stressing out about it. I'm wondering if my character is coming off annoying I feel really weird about it because I'm writing a guys perspective and I want him to show emotion about the awful shit he's going through but I don't want him to come off annoying. It's really hard. How do I work on this stress I feel?

How do I stop myself from feeling self-conscious about my writing?
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