You can begin affiliate marketing by joining affiliate program in your niche. If I am not going to deceive you, this is not the first step you need to take if you want to make money consistently with affiliate marketing.
First you need to work on your mindset and make sure you have right perspective before you begin with your affiliate marketing. You should know that affiliate marketing is not a get-rich-quick scheme money making model.
You must be ready to put in some level of works before you start making money with affiliate marketing. Also you should resolve to never Give Up even if you are facing difficulties with affiliate marketing.
The next thing is to understand the fundamental principle of making money with affiliate marketing. You can enroll into affiliate marketing course. This will give you a basic knowledge about how affiliate marketing works and the right steps you need to take to make money.
Udemy is a good course to learn affiliate marketing, they have quality yet quality courses on affiliate marketing. Once you have acquired a basic knowledge about affiliate marketing.
you should start applying things you learn about affiliate marketing as soon as possible and stick to it. You just need to be consistent doing the right thing and you are going to see results soon.