>>278965574
I was pretty much his age when I beat Half-Life 2 and much younger when I beat Half-Life 1. I didn't understand most of the plot probably and I remember I was stuck really bad in Blue Shift and that bit with the giant fan, but I also remember I was experimenting, and I figured it out because the grenades were going up.
He tried to drive the buggy up the pier in the part where you are supposed to leave it and use the crane to do it.