@gabe123 double check your work. Make sure that the connectors are all properly seated. Make sure that there are not bend, broken or corroded pins in those connectors. If all of that looks good, you may need to contact the seller for the display and let them know that it is not working. It could very well be a bad assembly. Request a new display assembly.
You did not tell us if the touch worked before you replaced the screen. If it did not, then there is always a possibility of a boardlevel component failure. To make that determination we would need to have more info.