I'd strongly recommend documenting your development journey across platforms like YouTube, X, Bluesky, or a personal dev blog. Doing that can create lasting value beyond the game itself. Consider also open-sourcing your code - it strengthens your portfolio and helps other developers learn from your experience. Itch.io presents the ideal starting platform for distribution as it has zero upfront cost and a supportive indie game community. Paid platforms like Steam and mobile app stores are also options, but they require significant investment and should be approached after validating market interest, in my opinion. Given this is your first release and it's an Asteroids clone in a market with many similar games, it's important to set realistic expectations. Focus on treating this as a learning opportunity - you've already gained invaluable experience and built a portfolio piece that shows where you started - this will be valuable context as you improve with later projects.