The spots on the leaves are a kind if a waxy layer that is segregated by the plant so that water can rool down the leaves. Have you ever noticed that water doesn't seem to wet the leaves...it creates drops and roll down.
Also, I don't see anything wrong with your plant. Anyway, Phalaenopsis (the genre of your orchid) are medium to low light plants so move it away from the window if that's too bright (south window, for ex).
Another note: beware of youtube videos. Some are good but others are just a bunch of incorrect information. Better post here. We will always answer your questions.