Minecraft used to work fine, I never had a problem with it, then one time I tried to start the game, and after pressing play, it acting like it was launching, and minecraft just never came up. I tried again and it said that minecraft was already open, but it just wasn't. I tried multiple times to launch minecraft from the launcher (which was working fine) but it just didn't start up. The launcher stayed there and minecraft failed to open. I decided to delete minecraft and re-install it, which seemed to work as minecraft started up, but got stuck on the Mojang screen. I left my computer for a few hours and when I came back it was still on the Mojang screen. I decided to close minecraft, delete it, delete all the mods I had used, delete forge, update java, delete my .minecraft folder, then reinstall it, and the same thing happened, though for some reason, I'm able to play the really old alpha versions of the game. I've looked all over the internet for a way to fix this but I can't find anything.Can somebody please help me?