You've probably heard the phrase, don't reinvent the wheel. This is one of the biggest obstacles for beginners trying to make money online. They think they have to create something new that nobody else is selling or that nobody else has come up with.
In reality, a large percentage of successful online business owners took an existing concept and built on that concept they knew was already working and scaled it to a new level. This is exactly what you should be planning to do, especially if you are on a limited budget. It's in your best interest to observe what is working for others and build on it so you can grab your piece of the pie so to speak.
For example, if you browse the Internet and see a large amount of similar ads it probably means that this type of ad is probably making the advertiser a decent amount of money. After all, they wouldn't be spending their valuable advertising dollars on a campaign that isn't profitable for them.
If you similar ads like this you should follow them, where they lead, what the sales funnel is like, what the lander looks like, what the product is, etc. When you open your eyes to marketing, you can discover hidden gems and find a way to break through and begin making money online.