2010 Silverado 1500 extended cab.
I'm big & tall. This is what I see out of the windshield of my truck:
The rearview mirror blocks the center-right portion of the window. I've had a couple close calls where I didn't see something that was obstructed by the mirror.
Additionally, I can't see upwards well enough. If I'm sitting at traffic lights, I can't see the lights without slouching.
I'm new to driving a truck. What am I missing? Is this a common problem?
The seat is slid back all the way (I don't want to be right up against the steering wheel/airbag) and the back of the seat is tilted forward all the way (because I like to sit upright for back health). It doesn't seem to be possible to lower the seat. All manual controls.

