Writing isn’t a sprint, it’s a marathon.
There is no rule saying how long it should take you to write your novel. So don’t get disheartened if you’ve been writing the same scene for two months.
Progress is just that. Progress.
It doesn’t matter how many words you write in one day, a week, a month or even a year. As long as you’ve written something, you’re still moving forward.
Take all the time you need. Your readers will be there at the end, no matter when you finish.
Good thoughts and happy writing.