IOS 9.2 messed up my phone entirely I can't type my phone keeps spazzing out I my buttons are barely working so please fix this soon

iOS 9.2 messed up my phone it keeps spazzing out and typing random things when I'm not even typing barely even type I have to dictate everything I have to say once again please fix this ASAP problems like these have been happening since the update came out so please fix it like tonight because it's starting to get ridiculous it's also opening a random apps random websites that I don't even know what they are so I'd rather have it fixed then end up getting a virus