yes, you are definitely not alone!
When my first marriage ended I went through very similar things you describe. Someone told me it is the grieving process. Although, there were times when I was so happy, content and peaceful for the first time in years, there were times of guilt, sadness, shame and depression and times when I really thought I had made a terrible mistake by getting divorced. Time heals. It really does.
For me, I think I hadn't "felt" any feelings for so long, because I was constantly in a state of trying to keep everything together that I subconciously would not allow myself to feel.
You may be in a similar situation, I don't know. But allow yourself to feel those feelings without guilt or shame. I am convinced now that it is a grieving process and we should allow ourselves to feel whatever it is we are feeling that day, that hour, ,that minute, that second. Even if it is a rollercoaster for a while.
I hope you will soon, very very soon, feel contentment and peace.