Yes, you can
You can write a book.
You can be a photographer and sell your photos online.
You can import and sell finger dolls.
You can make and sell your own finger dolls.
You can be a painter.
You can build web sites.
You can start a band.
You can start an electric motor cycle business.
You can start a radio talk show.
You can start whatever.
You can do anything.
What is stopping you?