Sorry to sound negative, but welcome to the real world. The vast majority of people are doing jobs they really do not want to do. Imagine what it feels like to be work on a production line for a 12 hour shift in China. Or getting up everyday to pack the shelves at Walmart. At some point in the next 40 years of your working life you will have times when your are doing something you don't enjoy, or that causes you stress or where you suffer from burn out. Don't panic, as this is normal. Typically you solve this by doing one of the following...
1 - Just work your way through it, it will pass.
2 - Switch to another project in the company.
3 - Switch to another company.
4 - Take time off.