1993 Chevy Corsica Rachael

Hi my problem is that yes I love the car but bought it bout like less than a week ago, already I go to drive to school and it dies on the way so I am thinking it over heated so I am pulled on the side of the road trying to let it cool down. Well I gave it like 5 minutes cuz the spodometer for the heating to see if it over heated was not hot it was just a lil above half way so I started the car it starts fine go to put in gear and it goes in gear and I go to press on break to go and it dies in gear. Now this has happened multiple times and it's annonying but I love the car and I wanna fix it but wat could be makin it die. Everytime it dies it is always a lil over have for the over heating sensor and when u put into gear to go it dies again until I guess the car wants to go. Now once it dies the first time and u get it goin u press on break and the car still dies so I try to miss all stop signs and red lights, now wat I notice always happens it feels like the engine is shaking and one time I heard the pistons knocking really bad. It also feels like the wheels r rubbin on something.