What are some common programming mistakes to avoid?

I am new to programming and want to make sure I avoid common mistakes that may cause issues down the road.

Always remember to test your code thoroughly before submitting it. This will help catch any errors or bugs.

Another common mistake is not commenting your code. This can make it difficult for others (and yourself) to understand and maintain your code in the future.

Don't forget to properly handle errors and exceptions. Ignoring them may cause your program to crash or produce unexpected results.