Make the games you like to play, because you'll be playing them a lot.
Be patient, because you're not going to make great games in a week, or a month, or a year. It will take much study and practice. You'll probably fail a few times, too.
Start with something simple. Don't turn your nose at text-based games, for example. People love them, and you have to start with something you can handle.
Talk to people. Play their games, too. Then show them your games.
Try all kinds of engines. Try to learn programming. Figure out what you like best and what you can do good work with.
Don't give up easily.
Be kind.