The first step is to judge yourself, what you are, what can you do, what are your expertise, what are your interest etc etc.
Once you are clear that you are good in xyz and abc... then decide whether you are going to write content on your interest or you can create videos on those topics or on your interests.
Then create a website or a free blog at blogspot.com and start writing articles (if you are good in writing). Or if you have made some videos then post those videos on YouTube and on your website/blog as well.
Once your website/blog or YouTube channel is read with useful content that is created by yourself and there is no copyright issues then apply for Google Adsense. You will get a code to insert in the <head></head> section of your website, insert that code and Google will review your website (if you applied for website or blog). If you applied for the YouTube channel then you have to get 1000+ subsribers and 4000 hours watch time with in 12 months. Once your website is reviewed or your get the required subs and watch time on your channel you will be allowed to earn money using Google Adsense.
I hope it will help you. Ask for the help from your friends as well who are already making online money.
