The summary.
RESEARCH JOB ADVERTISEMENTS IN YOUR OWN MARKET
They show real demand rather than what is discussed online. And SQL appears in almost every data-touching role while being widely neglected.
DEPTH IN ONE LANGUAGE BEATS SURFACE FAMILIARITY WITH TEN
Employers hire for capability, not for a list. Pair any language with version control, testing, databases and deployment.
BUILD SOMETHING YOU ACTUALLY WANT TO EXIST
Tutorial projects demonstrate following instructions. And include what was difficult and what you would do differently — that demonstrates judgement.
A few finished and explained projects beat many abandoned ones.
MOST PROFESSIONAL PROGRAMMING IS CHANGING EXISTING SYSTEMS
Add tests around what you must change, change the minimum, and never remove code you do not understand — it frequently handles a case you have not seen.
Working software is worth more than elegant software that does not exist.
JUDGE TRENDS BY PRODUCTION USE AND JOB ADVERTISEMENTS, NOT DISCUSSION VOLUME
Most new technologies do not persist, and adopting early means carrying the risk.
WHAT BEGINNERS ACTUALLY STRUGGLE WITH IS NOT SYNTAX
It is decomposing problems, reading errors, and not knowing that confusion is normal.
