Oh god I suck so hard. I'm spatially-challenged.
Until I smartened up, my highway-merging method was:
-- Look (even though I didn't understand what I was seeing. what lane is that car in? what lane am I going in? how many lanes are there even? WUT) press gas pedal harder, hope for the best.
I compensate for my drivetardation with excessive caution. I'm not a slow driver, but I definitely wait longer at stop signs, when pulling out of streets etc., than most others.