There are a huge number of methods for making money. If you read all the comments in this thread you'll find more of those than you'll be able to work at the same time. If none of the mentioned techniques appeal to you let us know where your passions lie. Perhaps we can give you some other avenues to pursue.
Everything depends on what you are good at. I know many people, who are writing content, there are plenty of opportunities.
Don't focus on money to start with. Focus on getting the job done. Get a simple system from the many offered for free or for sale to make money from home. Start it and stick to it. The money will come if you do that properly. Finding what it is you want to do can be very confusing as there are so many options for working from home these days. But whatever you choose to do the true financial benefits will come if you day by day put in the sweat. Remember, it's work from home not stay at home and do nothing and make a fortune. All the very best in your endeavours.
Yes you can Earn From Home..there are many ways.. 1: If you have creative mind then make videos related to art and craft and upload on youtube. Active monitization and Earn From your creativity. You can upload real cooking videos to Earn some Extra FROM Home( only if you have interest in cooking) 2: If you have skills related to Social media Promotion then you can join free sites where freelancers sell their skills like promoting websites, writing articles,posting ads etc.. 3: If you can invest Money then buy some items from ebay or other online stores in wholesale rates and start selling online through Facebook page and other social media...
You might also want to consider a telecommuting job. There are websites like FlexJobs.com where you can find legitimate work-from-home job opportunities.