Alway recognize opponent's move, never my own.

Hello,

I'm a novice player who is returning to the game after not playing for 20 years or so. I have a problem for which a strategy eludes me.

Sometimes during play, no matter how long I measure the position or try to visualize how play will progress after a potential move, I won't spot a blunder until the instant I play it, but then predict my opponent's reply and spot the better move too before my opponent's reply, by which time I have of course lost a piece, or the tempo.  It's frustrating because it means I have the capacity to conceptualize and progress many of the situations I blunder, but simply fail to execute the obvious better move(s).

Do any of you have any advice for how to tackle what has become an stubborn impediment to my progression and development as a player?

I hate when that happens. However, the frequency of these blunders has definitely been decreasing for me since I started studying tactics, since I can spot things faster now. Also, as others say, "sit on your hands" when you play.

"Sit on your hands when you play."

Ha, I like that. Simple.

When you see a move look for a better one. 

and

Look at what your next move weakens and what your opponent can do.

When you are doing one or both of these things you will usually find good defenses for the opponent and even better moves for yourself.