We make many mistakes in our development career journey. If we can avoid the mistakes then our development career will shine more. 

Things to avoid:

1. Perfecting codebase - Thinking a lot more to set the perfect varibale names, function names, choosting algorithm/ data stucture that is ment to be used for solving large problems even though it is not nessary for the current problem etc.

2. Over Engineering - Over engineering usually refers to building for way future problems.

3. Reinveting the wheel - Creating something that is already existed.

4. Jumping between technologies - Ignoring learning properly and switch between technologies without finishing properly.

5. Not builing networks - Not talking advantage of helping hands and the opportunity it brings along the way.

To be honest, I have gone through most of the cases I've mentioned here and I suffered a lot. I hope you do not make the same mistakes.

Share the awareness among other developers in your network.