What Early Mistakes Did You Make in Backend Development?

One of the biggest mistakes I see beginners making is the n+1 query problem. Essentially, when you fetch a list of items and then make a separate request for each one afterward, it can lead to serious performance issues. When apps reach a point of unacceptable latency, it often demands a significant rework, so it's something to keep an eye on early on.

Completely ignoring troubleshooting strategies for when your code is in production. It's easy to just focus on building features, but unless you have a solid plan for debugging once things go live, you're going to be in for a rough time later.

You actually need to make mistakes and fix them to really learn. So, while it's good to hear about what to avoid, remember it's all part of the process of developing your skills.

I think trying to abstract everything too soon is a common theme—like going overboard with inheritance or making things reusable before you even understand the problem you're solving. Sometimes, keeping it simple is the best approach while you're learning.