The First Step

Hey! I wondered if anyone can help. :blush:
I have wanted to become a HGV/LGV Driver for a long time, due to a recent change in circumstances, it has been possible to follow this dream!
So… once I have my licence, how would I go about finding work? How does it all work? Do I apply to a company (Morrisons, Ginster for example), or do I have to register somewhere?
Also, can you be selective as to the type of work you do, as I don’t think I would want to drive abroard?!
I hope someone is able to help!
I am really new to all this, and I have no relatives in the industry to ask! I worry if I ask a specific company that I may get biased information!
Thanks
K