Start with a solid business plan.
Where will you get your reseller account? How much will it cost? How many customers do you estimate you can have on that account?
What other expenses will you have? (Domain name, whmcs, marketing, ssl, etc)
How many customers do you need to break even, and do you have the funds to pay expenses yourself for at least a year?
How are you going to attract customers? What will set you apart from the rest and encourage customers to pick you instead of someone else?
Develop a growth plan. What services are you going to offer now, what do you want to offer in the future? What will you do once you outgrow the reseller account?
