When you’re learning, it’s important to step away and absorb the concepts. The Pomodoro Technique is widely used and can help: you work for 25 minutes, take a short break, and then repeat the process. Taking breaks is critical to having an effective study session, particularly when you’re taking in a lot of new information.
Breaks are especially important when you’re debugging. If you hit a bug and can’t quite figure out what’s going wrong, then take a break. Step away from your computer, go for a walk, or chat with a friend.
In programming, your code must follow the rules of a language and logic exactly, so even missing a quotation mark will break everything. Fresh eyes make a big difference.