You are new to Digital marketing
. And you are interested to earn from Digital marketing on part time. As long as you have internet, computer or mobile devices, personal or client provided social media account, little bit search engines workout then you can get it done.
Try to search about what is Digital marketing and how it works in real? Also, try to get a client on this by accepting a small project to begin with. You will gradually become an expert on this.
One of the main purpose of Digital marketing is to reach the vast audience for the particular business (or client requirement) and get some leads out of it. How can you reach on various channels on social media is depend on your research and talent.
As a Digital marketer, you will be responsible for brand awareness in the digital world, client will assign you with a certain task, marketing or promote them online about a particular products to get leads.
It will be helpful if you know a bit about the SEO (Search Engine Optimization), SEM (Search Engine Marketing), PPC (Pay-Per-Click) Advertising, SMM (Social Media Marketing), Content Marketing, Affiliate Marketing, Influencer Marketing and Email Marketing etc.
It will also be helpful if you contribute on this (ISC) site and personal blog about certain niche to enrich yourself on Digital marketing. You can then try for a freelance too.