1999 Acura Integra timing belt

I recently replaced my water pump which includes removing and replacing the timing belt. I didnt realize that you had to positon the TDC correctly before installing the timing belt. I put the timing belt back on and put everything back together without trying to adjust the TDC. When I started my car the ideling was off and the rpms were highs it does drive and when I use the breaks the car feels like it wants to stall and pulls like it wants to go. My question is how do I fix the problem can readjusting the timing help. How would I know if I have valve damage or could it be the spark plugs im not sure what I should do without having to bring it to a shop.