How can I reduce sensitivity of my screen.

[AC Question]

#when I answer the phone it goes to mute half way through call. Screen too sensitive. Huawei Y360. Or is there a way to remove the mute button from the screen. I keep cutting people off or putting them on hold. Really not working for me at the moment. Or can anyone recommend a phone that will not do this. My last phone Nokie Lumia also did this so obviously me but how can I get around this please??