I've had a number of jobs in my career. In some, I've been great. In others, not very good. I've been pretty much the same person each time, and the descriptions for these jobs have not varied that much. The particulars can really make or break things, though.
People and jobs are like locks and keys. Some fit, some don't, but that doesn't necessarily mean that the key (or the lock) is bad.
If you have the option to look for other positions, inside or outside of this company, you might consider it. It's a lot more fun to be a big fish in a little pond than a tiny one in an ocean.