hy sanyam!! 

Freelancing is a most sought after job in today's world. If you are good at writing and writing is a passion for you , freelancer is the best platform you could ever had. All you have to do is to register yourself on freelancer and start bidding for the projects you are interested in. The companies will provide you  the project if they feel you are eligible for it. You need  to present a good and attractive resume and start doing some projects free of cost so as to gain some experience. Gradually you will start getting projects from freelancer. 

Hope it  helps !! 

All the best!