Hello!
I think I'm proud of the whole outcome, and six years into it I'm so proud of myself for writing my first complete novel in my non-native language. I had especially the support of this community who would just encourage me to write even though my English was not excellent as a native speaker, and for that, I will thank them endlessly.
Sometimes we focus so much on what's wrong than anything else! Perfectionism was not helpful, but I managed to shut it and get it done so...
The second thing I'm proud of is around the middle to end part of the novel, where there is a transformation of the main character and others - I'm not spoiling anything, so go on and read my BL fantasy horror novel Not Again!