Thinking of strating up my own handyman serivce?

Hey i have alot of experince with trades including plastering, tiling, joinery, glazing and i am going to go on a course that teaches basic electirics and plumbing and brickwork ive always wanted to set up my own handyman firm but im worried i wont get anywork do how often are handymen used or called and how can i get people to use me