Hi Fardous, My recommendation is to start a blog. If you've got it in you to produce interesting content, visitors will come. Just add some ads and money will start flowing. You say you're a professional. I don't know what your profession is, but extend that to its fullest. Start a company/website based on your professions and revenue will come. The best advice I can give you is to invest all your time into things you like and are good in, and never stop learning new things. Hope this helps!
I don't know that your good at. But if you want to earn stable or increasing money without having to worry about the whole company you could work online. And if you are hard working and patient you could start your own website and IT service.