For a steady income perhaps the best way is to open your own business. Depending on your skills, it may bring you good results.
I think making a business it is a good idea. But in the first year you probably will not get a fixed income or even great. use the first year as a promotional event for your business. after that I'm sure will be well-known own business and you live to enjoy the results
For every year if we want it to be a successful business we should not have to get profit from there but we have to spend on it for its promotion and have to give benefits to users/clients, with that in the coming years the business will be a more successful business.