Your customers are just like you. And your competitors customers are like yours. There is nothing standing in the way of your business growing.
Even with the biggest brands like Coca Cola, their average customer buys from them just 12 times a year. It is the fact that they have a lot of customers that makes them one of the market leaders but their buyers are not always loyal.
Think about your buying behaviour, do you always fill up at the same petrol station? Or buy the same washing powder?
You need to create a marketing strategy so that your product or service is accessible, it is remembered and it is consistent, so it is easy for customers to choose you.