I am not a gambler but I quite like spending a quiet hour or so on a Friday evening or Saturday morning putting together an acca or two. Money is tight in our household soI bet miniscule amounts just for the fun of it. I will look at good and poor form teams but not always obvious ones. I will occasionally check local websites to see if there is any reason for slumps in more obscure teams. This is where you learn about key injuries, manager changes ect.
I enjoy the research side.
I often use betfair acca edge, treble with stake back if one leg loses. Serious gamblers will baulk at that but it suits me. I only bet 1 or 2 quid.
I put a fiver in my account during the world cup and my account is at £37 a year later so I win more than I lose