To answer your question, first of all remind to yourself why you want to do that in that niche. You may have such a conclusion about crowded business because you are already there and all you see-your competitors.
First identify how you are different and what value you can bring to your customers, why they should chose you before your competitors. 100% of buyings are emotional decisions, what emotions your product or service brings up? How you are representing those emotional patterns to your potential customers?
There are still many businesses that just making things done. And if you master making things done even a little better than any of the mediocre competitors than you still have more chance.
It is 50/50 between your state of mind and consistency.

Good luck on your businesses!