THEORY VS PRACTICAL:

One never knows what challenge life will throw at you next, and most importantly, when it decides to test your alertness. You have to be alert, like Virat Kohli remains alert at the crease, ready to swat the ball, which is intent on removing your stump (or just the bails balanced delicately atop).

One should create a habit of at least listening to what your seniors (s) tell you, even if the words are harsher than you would like. Because what experience teaches you, no amount of reading theories will!! That is why they say, that experience is the best teacher. 

Reading books will only enrich your knowledge, but unless you learn how to convert a theory, no matter how sound on paper, into a practical application, it remains just that, a theory.

To illustrate, let me explain with an example. Long ago, I used to teach a subject called SADP, short for "Systems Analysis & Data Processing" at the CA (Final) level. I was explaining the student the conceptual theory of a silicon conductor (chip, in layman terms) and I asked him if he has observed what happens when a tubelight is switched off after use? Next time, even you can observe, that the tubelight flickers until the remaining electric charge disperses completely. When the boy followed my instruction and temporarily turned off the tubelight, I explained that the silicon chip is popular in the computing industry for the reason that if you turn off the computer unexpectedly, the silicon chip retains enough charge to write back into the hard disk your last unsaved work. How else does Microsoft Excel present you unsaved versions of your active worksheet even though the electricity failure occurred unexpectedly?

Another last piece of advice to my younger and more enthusiastic fellow members: Never cross swords with the programmer who writes your VBA or Python code, because only he controls what will happen when, in your application!! It has happened with me, though being an ethical hacker (post my FAFP certification in 2016), I was able to catch the error and forced my programmer to suitably amend the code!! :-) :-).

But you may not be so lucky: Better safe than sorry, as they say!! The graphic below has been amended by me to remove references of unwanted variety. Plus, I can now promote, as a #freelancer, my website, www.cavsm1962.co.in - safely!!