LOL. Of course I have done my own observations. HUNDREDS of them! You can observe dozens of things that prove the globe every single DAY!! That you ignore everything that disproves the flat earth does not mean you've disproven the ball! It means you ONLY are willing to look at that which confirms your bias!
In fact, I've written about many of them on my blog and will be writing about more soon! I've shown you probably a dozen of them that you absolutely refuse to address, like horizon drop and the plane landing behind the curve.
It's easy for anyone to KNOW we live on a globe with 100% certainty! 95% of all observations EVER made to show that we live on a globe are simple observations anyone can do themselves. No NASA or government needed at all!
That you are unaware of these observations, or ignore them, or explain them away when they are inconvenient to your belief system is why you are a flat earther! You choose to remain ignorant, and somehow BELIEVE that we only know the earth is a globe because of NASA!!! Which is utterly and completely preposterous. Truly a show of your utter and complete ignorance of the topic.