iPhone Screen HELP-ASAP

Try a reset: Simultaneously hold down the Home and On buttons until the device shuts down. Ignore the off slider if it appears. Once shut down is complete, if it doesn't restart on it own, turn the device back on using the On button. In some cases it also helps to double click the Home button and close all apps BEFORE doing the reset.

Following that, you may need to consider restoring as a new device; or having Apple or an Authorized Service Center have a look at it.

If you actually tried the reset and get that result, then follow the advice given.

As I said before:

"Following that, you may need to consider restoring as a new device; or having Apple or an Authorized Service Center have a look at it."

Sounds like a hardware fault to me. You can ry restoring it, but I have the feeling you're going to have to get the phone replaced.

Consdiering the age of the phone (based on model) and the symptoms, you are probably right.