Can't load into worlds without restart of game

Everytime I either go into a world after launching the game or want to switch worlds I have to quit the game and restart the whole game to get into the game or it will either try to update an ubsurd amount of resource packs (i.e. 1,000,000,000+ at times) and freeze at that screen or it will cancel the load and retry causing the screen to flash at a speed that may cause an epilepsy seizure and that also requires a game restart and that can happen multiple times before the game will let me into my world.