Fortunately/unfortunately

I went for a walk in the park on Sunday.
Unfortunately,my bag was robbed by the robber.
Fortunately, a man saw the incident and he chase the robber.
Unfortunately,the man falled.
Fortunately,he could catched the robber and got my bag.
Unfortunately,the robber ran away.
Fortunately,i got my bag and I said thank you to the man.

It was my birthday last week.
Unfortunately my dad not with me to celebrate my birthday.
Fortunately my mum and friend could celebarate with me.
Unfortunately,they did not gave mt the present.
Fortunately,my father gave me the big present that I liked.