Affiliate marketing is the process by which an affiliate earns commissions to market a company's products. Affiliates find products from companies they like and promote them on their websites, social media accounts, or other media platforms. When a member of an affiliate's audience purchases a product via a specific link or promotion code, the affiliate receives a reward to help them generate business sales and traffic.
It’s a must without practical experience you cannot move in the career. So doing an internship will be always helpful for you to know and understand the pros and cons of the field. It will help to get the hands on skills.