There are several ways to make some extra cash online. Here are a few ideas:

1. Freelancing: If you have specific skills such as writing, graphic design, programming, or social media management, you can offer your services on freelancing platforms like Upwork, Fiverr, or Freelancer. Create a profile showcasing your skills and start bidding on relevant projects.

2. Online surveys and microtasks: There are websites like Swagbucks, Survey Junkie, and Amazon Mechanical Turk that pay you for completing surveys, watching videos, or completing small tasks. While the earnings might not be substantial, they can add up over time.

3. Online tutoring: If you have expertise in a particular subject, you can offer online tutoring services. Websites like Tutor.com, Chegg, and VIPKid connect tutors with students seeking help in various subjects.

4. Dropshipping: While your previous e-commerce store didn't work out, you can consider dropshipping. This model allows you to sell products online without having to handle inventory. Research trending products, find reliable suppliers, and set up a new store using platforms like Shopify or WooCommerce.

5. Affiliate marketing: If you have a blog, website, or social media presence with a decent following, you can earn money through affiliate marketing. Join affiliate programs of companies that align with your audience and promote their products or services. You earn a commission for each sale made through your unique affiliate link.

6. Online content creation: If you enjoy creating content, you can start a YouTube channel, podcast, or blog. With consistent effort and quality content, you can monetize your platforms through ads, sponsorships, or donations from your audience.

Remember, making money online requires effort, persistence, and sometimes a bit of luck. It's essential to research and choose the method that aligns with your skills, interests, and available time.