1998 Chevy Suburban Malfunctioning on push button from 2hi

For a couple days the vehicle was drove in 4hi because of snow. When I tried to put the vehicle back in 2hi it seemed to be stuck in 4low. When driving it down the road it kicks in and out of 2hi to 4low and won't go over 5 miles per hour. When I stopped at a stop light for 20 seconds the vehicle was still running and in drive the vehicle would not move when I applied gas, it would not go forward or reverse.I had to shut it off then turn it on and try then finally it went into drive but was still in 4low. For many months the fuses have been not working properly also. What could be the problem? I need help!