I've just given in my notice

[chocolatesweets]

I expected to feel great but I feel awful.
My job was boring, poorly paid and didn't really give me any extra skills. This new job is better paid, more hours (salaried), and provides better experiences. Both were short term and both end the same time.

Why do I feel so rotten?

You're just in flux mode: change, fear of change can be unsettling. It'll be okay once you start the new job.

Congratulations on finding a better paid job.

You will feel better when you leave, it will feel more real.