The launcher loads the game but it doesn't load the game

I've had Minecraft for while now and its always been working until a few months ago. Must be something with my account or the launcher, it loads the game but it doesn't load all the way. I've tried to re-install it multiple times and I've tried reading up on the forums to see if anyone else had the same problem or had an idea of how to fix it but nothing helped. It'll be awesome if you could help! Thanks.