Iphone 6 problems. Can you

Basically the phone is cracked and now it's having problems. It randomly freezes sometimes while I'm going through apps even stock apps. Also when i press something it'll click on other stuff. Sometimes it does one or the other or both. I really hope that it's just because of the screen is cracked. No gray bar at the top of the screen when the phone is being unresponsive.

Have it repaired.

The screen on any touchscreen smartphone is the main user interface.

So you can expect a damaged screen to cause problems.

It's impossible to be certain that the screen alone is the cause of your phone problems though without the chance to inspect your phone. But as a replacement screen can be had fairly cheaply (very cheaply if you order one online and fit it yourself) you have little to lose in trying a new screen. As long as you know your phone hasn't been wet in the past, or has been dropped a lot, then the fault is most likely entirely due to broken screen.

Seems like an issue with the digitizer. Take in for repair or at least a diagnostic evaluation at the apple store. If not, you can the less expensive way and find a 3rd party retailer!