Car doesn't move after releasing the brakes. Either in drive or reverse. It does move when i press the gas.

So kicking myself in the rear here, because i let my friends dad change my brakes for me instead of being charged over 400 for it to be done at a local shop.

When brakes were done he let down the car and forgot to remove a stand and it cracked a radiator hose. So he replaced the radiator completely, car runs fine.(sort of). I noticed when leaving that when the car is in drive or reverse it just doesnt move, and it always did before. I also noticed when letting off the brakes the car wont creep forward like it use to. Aswell as when I let go of the gas the rpms drop fast and the car slows down a lot slower then it use to without even braking. ( At the time of this question i didnt think to look to see if the EBrake was pulled, and its freezing right now to go back outside to check.)

Been doing some research and some similiar problems could be just not enough trans fluid (Which i hope), while some others sound bad.