And yes, if you do commit to something like blogging, or writing and freelancing, you can and will make a living (you could even make way more than you could ever at your day job. That said, no matter how much time and effort you put into things like surveys, paid to click sites and things like that, they are not gonna replace your day job. They are just an attitudinal income generation options that you can use in your free time.
Many virtual assistant jobs do not require secretarial or administrative skills to do. College students can use their organizational and communication skills they have developed while studying to do virtual assistant jobs for people and businesses. They can offer data entry, social media management, research, website maintenance and other services.