i just bought a tusa m30 mask, i've been fitting it once in awhile to familiarize myself with it since it's my first time to wear a diving mask. i know that you're suppose to buy a mask that will stick to your face when you inhale from your nose and so it does a vacuum effect but the thing is i kind feel i little discomfort on my nose. so my question is, should i just get used to it since it's my first time or i should get a slightly bigger mask since i have a tall nose?