Well... it fixed itself i waited like another 30 minutes. I have a new problem now... I finish loading up and then it try to download Minecraft Assets then stops and i have to retry.
OK so i have tried many times now, and every time i try to install legends or general mod pack. Every time i get stuck on Installing Minecraft. Here is a Screenshot: https://gyazo.com/6bfac9527fe76690afffbd2f074092f4
I don't know how to fix.