When I started contributing to writing sites, I understood that I need to write. Write daily and write correctly. Writing daily is a very important part of this business. Business, in the sense that, if you want to turn your knowledge and your passion for writing into some earning source
Simply writing won't help you. Then what? You need to have a passion for writing. Those who have it, need just to attend to it for, say, a couple of hours daily. But only that won't help. It should be uploaded to the relevant sites. When they get accepted, or get published only then do you set your ball rolling.
Initially, you may find this rather tough - to cope with the schedule that you choose. But when you get used to it, then you will die to write. Words will follow you. You will be loaded with thoughts. And then you will get the joys of writing. And if coupled with some earnings - that's why you will write then.
Write and earn will become the order of the day for you. Best luck and God bless!