1992 Chevy Lumina Two Problems

First and formost It no longer shifts correctly, I literally have to manual shift it down to first at every complete start and shift up to 2nd then to drive every time I take off to keep it from shuttering. Also there is some major leak in my power steering, tryed every kind of stop leak and it drains out within 24hours, I could get it on some ramps but im not familiar with that section what should I look for?