Please help me correct my mistakes, and I would be very grateful

The results of this book have always been very poor, from the sixteenth chapter after many friends said that they can't stand it, I read it again, I can't find anything wrong at all, this is the worst, I ask everyone to be in the embryonic stage in itself, tell me where it feels bad to look at, should be revised.

If it's a problem with the protagonist's personality, the protagonist should be funny, this is not easy to change, if there is a problem with the main plot line, Mulan should go farming, this is not to say that it can't be changed, but after changing it, the friends who have seen it have to look at it anew, I don't want to add trouble to the friends who have seen it.

If I can't find any mistakes, I feel more entangled, and it's hard to continue writing

Please help me to correct it together, thank you very much