knowing a hobby inside out is one thing, but having the business skills is another. there are lots of things that you need to know and do before your customers starts handling over their money to you.

you got to think, how to sell, how to make customers to come visit you, how would you advertise, which method to advertise, how to make everything work with your limited budget etc. And you must also think of a Plan B if what your plan did not go as planned. But all in all, you will gain a lot of experience through all this activities and do make sure you survived to not make those same mistakes again.

actually everything requires hard work. it means spending a lot of time and effort to get it going. sometimes have to dig in when you work so hard and end up hitting a wall. must not feel demotivated. have to remotivate yourself always. that's the part that separates the losser from the winners.