Well, here is what I can say from my own experience.
When I first started flying, I wasn't sure whether I liked it or not, because I was confused, didn't really know what I was doing, I was tired etc..
After the initial "shock" was over, I absolutely loved it!

I couldn't wait to get on the A/C, meet and talk to pax, I enjoyed it so much I thought I would always work as CC.
But then after a couple of years I slowly started to loose my excitement. I didn't get a "buzz" from going to work any more. Then I started to realise I wasn't looking forward to going to work any more. ... I think this is where I shoul have realised it was time to leave. I didn't ...
I ended up hating my job. This is when I left and felt so releived and happy!

I took all the good memories with me, it'll last me a while.
Anyway, what I am trying to say is - hang on a little bit, just in case you are still in an "initial shock" period. Then if you still hate it - leave. There is nothing worse than doing a job you hate - it ruins your life.
And it is true - you either love it or hate it.
Hope this helps!