Don't let something already existing stop you from starting. If you look closely, it's extremely rare that the very first of any idea goes on to be the most successful company.

Google wasn't the first search engine. Facebook wasn't the first social media network. Amazon wasn't the first online store.

The winner is the company that does it best. It's all about execution.

If you believe in the idea, and you believe in yourself, then go for it.

The most important thing is to start.