Whats this brown stuff on my rocks?

[PharmrJohn]

I can relate with the lack of patience xd i just want all crazy looking corals

It'll happen, my friend. Just know that these tanks you see here took years to get to where they are. Most corals take a long time to get to a size that we want (with notable exceptions such as Xenia, Kenya Trees, GSP and the like). Just enjoy your tank for what it is at any given moment.