You could theoretically earn money on Writers Lab, but a lot of people don't recommend it. For one, many reviewers complain of rude clients and terrible customer service - furthermore, lots of people say that the site leans very heavily towards its clients, and therefore assumes that the customer is always right, even though in most cases, they aren't. There are also many people saying that the site sells your email to spamming companies and platforms, so if you sign up, you'll find your inbox crowded with advertisements from companies you've never interacted with. Finally, it's very difficult to earn money on there - most of the well-paid work is academic papers, which require you to have several degrees and certifications to complete. The other assignments are very cheap, and you'll find yourself underpaid. Try Fiverr instead - it's a lot easier to make a lot of money on here.