Snspurts

Ive been having problems woth my trans its a 1990 im at 247k miles everytime i try to drive ot shifts into gear pretty hard then i can only go about a couple hundred feet and its like it shuts off the trans like im in nuetral in every gear and onl park works i turn the car off for a minute then back on and itll shift back into gear and do the same thing any help is appreciated