Help!! Minecraft 1.15.1 Wont Load!!!

So I got the new update for Minecraft (and to give you this note: I have a computer that can play Minecraft. It's A Laptop) And The Most Wierd Thing That Could Happen Is That The Game Launched, But So Far It Did Not Load at all. This is kinda upsetting me and I really wanted to play the update! this new update, unfortunately, it affected other versions like 1.14.4 So... 1.14.4 Won't Load On Me. [ive tried to reinstall Minecraft on my pc but it did not work... I hope someone can fix this...