You're definitely good on timing. Try it for yourself, for fun, and see how you do. Just the usual two important things:
1. Start simple! Make a number guessing game. A pong game. Whatever. But definitely start small.
2. Know that it will take a while. You can learn a programming language like C++ as most people do but you can also make games with game making programs where you don't even need to code. (The tradeoff is that you have less control over things but usually this is ok for beginners.)
Look around this site for beginner articles and it's also worth starting here: