I've got a ton of time these days since I gave my two week notice at my job and three weeks ago was my last day.
Sounds relaxing. Does that mean you aren't working anymore and won't take new clients?
Yes, I'm looking forward to being less stressed by my job.
It is reasonable that you would give two weeks' notice before you quit. That was the right thing to do to allow your employer to find a replacement for you, and it is good you are no longer working at a job that causes you stress.
So I'm not expected to work anymore since my last day was three weeks ago.
That sounds great! You'll have plenty of time to relax and take up some hobbies that you enjoy.