There's a huge mosquito clinging to my front door and I'm too scared to shoo it away

It's creepy. It just sits there and doesn't move at all.

Dude, calm down.
Take aerosol spray, point it at the mosquito, turn the spray on, put a match in front of the spray, divide the rate of speed the gas particles are moving by the hypotenuse of 3x+b minus the altitude of a trapezoid, and I guarantee you will like the results. It's that simple.

Its probably a mosquito hawk, which are not dangerous.

If it's bigger than a half inch, it isn't a mosquito. Probably a crane fly. Completely harmless.

It's probably waiting for you to go to bed so it can sneak in and stab u with a huge knife.