In order to be successful in web hosting business. You need to understand how billing system works, how to manage accounts, how to debug the server if anything happens. You are familiar with IT skills, that is an advantage, but you also need to check your ticket system regularly to provide timely support for your needy customers. If your customers are happy, they will renew their service. In general. If you have interest for the work you are doing, I think you will grow well, but it will take time.