Congrats. I know the feeling all too well. My last day at work is tomorrow. While it's not something I -REALLY- wanted to do, it still feels good that I did it. I enjoyed my job, but time to move on to bigger and better things.
Hopefully, you are looking at something better suited to you - ride that high, hon
I, too, can relate. When a job becomes toxic for whatever reason and you give notice, even if you have to work there for a couple more weeks it can just take a huge weight off your shoulders to know that it's almost done.
"A mistake is not failure but feedback. -Rod Gilbert"