Are there any ways to create more cash flow?

[Tyler Thavong]

I have yet bought my first property. (I'm 16) But I was talking to a realtor earlier. And we chatted on how buying a property works. Duel agents and other things that happen in buying. However, she did warn me about some flaws. Sometimes you might buy into a property that doesnt cash flow or just break even. What should be considered looking at a property? And ways to analyze a property using redfin or Zillow. Also I got my w2 form. (I worked all summer, round 4 grand)(invested 3k in stocks). How does this work, and doesnt it help to get pre approved?