Best way to avoid blundering pieces
By becoming a scientist and not falling for wishful thinking/confirmation bias. By obviously learning important tactical patterns, and actively searching for the best response by the opponent against our moves. This is a timely question as I am now working on a blunder-check course!
Hey gentleman, can you be my source of inspiration by showing the right way to calculate like Grandmaster? We all are the same then why don't we play the moves same way! what is the difference gentleman?
The difference is a grandmaster stores hundreds of thousands of chess patterns and chunks in their brain. This makes the calculation process much more efficient. They don't necessarily calculate deeper than amateurs, but they very quickly spot the best moves, given their vast experience and pattern recognition. I created a Chessable course titled "Fundamental Chess Calculation Skills". I teach short calculation in that course, together with important positional patterns and chunks.