My van starts no power windows ABS light on can't shut off gears won't shift

Hello, wow, sounds like a few things happening at once. A lot of guessing can be done on here, but sounds like a professional hands on diagnosis is in order for your safety and the safety of other drivers. The ABS / Transmission not going into gear sounds like it may be related to a switch or sensor that those systems use together. The ignition -- if they key is hard to turn, there is an issue with the cylinder or the column. The key may simply be worn out also, not tripping the proper tumblers. The power windows could be related to a battery voltage problem or a master switch problem. Again, professional hands on is the way to go with this one. Good luck.