Every time I open the message app it instantly closes help!!

Try holding down the home and power buttons until you see the Apple logo.

-Ethan

I have the same problem and tried restarting, reseting network setting, and other stuff i read but nothing helped. Still waiting for an answer as this really annoying

Which apps are you referring to? The apps preinstalled with iOS, or apps from the App Store?

If you are referring to apps that are preinstalled with iOS, if the problem persists, you will have to erase it (via Settings>General>Erase all content and settings) and restore from backup. If they continue to refuse to open, you will have to set up as new.

If you are referring to Apps installed from the app store, delete them and reinstall them (or contact the developer if needed).

If all else fails, http://www.apple.com/retail/geniusbar/

-Ethan

Did you receive any odd text messages? I wonder if you're being affected but the iOS bug that's been found. There's details here & a link to a workaround here: http://9to5mac.com/2015/05/26/ios-messages-crash-bug/

~Lyssa