Don't sacrifice morals for a quick buck — At the outset, you'll want to do all sorts of things to make money online, but don't sacrifice your morals for a quick buck. Not only will you put people off, but you'll lose Google's trust. You also shouldn't concern yourself with things like Adsense or other ads on a blog before you have around 100,000 visitors per day. Yes, per day. 
If you’re handy or creative, you could craft your products and sell them on sites like Etsy, Amazon, or eBay, straight out of your home. The biggest challenge would be getting discovered, depending on your niche and how viral your products are. But thankfully, there’s tons of advice out there, from pricing your work properly to taking the best photography possible.
"Thinking that ideas are more important than teams. I hear a lot of first-time entrepreneurs tell me 'I have a great idea for an app; I just need to find a technical co-founder to code it.' But successful startups iterate their original idea constantly based on market feedback. Sometimes they even radically pivot like Paypal or Slack. Only great teams can do that, so the execution is much more important than the original concept. And it’s easier to change the idea than it is to change the team."
"The way we’ve gotten around that is to always work with somebody on a project before we start handing over significant equity stakes or large sums of money. If the trial project goes well, then talk about expanding the scope of the relationship. Sam Altman from Y-Combinator once said something to the equivalent of 'a bad hire in the first few employees can be detrimental to a startup.' I've really taken that to heart in my business."