When I missed tactical move !!

We solve tactics and puzzles during our practice sessions but I think the actual difficulty is not in solving/understanding the puzzle but in spotting them when they actually appear in our games. And I have no idea how I can pacify this anger caused by a tactical move I missed in one of my games. Here I'm posting the position that mocked at my hours of puzzle solving. Tell me if you see the move. And if yes, do you think you can spot it in the middle of the game?

 White to move.   ( I was white.  Black's last move was Rg6 )

I'm nowhere near as good a player as you, but I couldn't put it together even knowing there was a tactic to be found.   Of course I'm old...I even saw black's back rank problems but couldn't figure it out.  I should switch to checkers...

I see back rank problems and I see a fork at e7 and the knight can move anywhere for this move due to the discovered mate threat.

So 1. Nf5 Rxd1+ 2. Rxd1 (with a mate threat due to the back rank) h6 (prevents 3. Rd8#) 3. Ne7+ Kh7 4. Nxg6

Precisely.. That's what I missed. But it's great that such positions happen in actual games also, not just in deliberately made puzzles

Everyone is a beginner at some point of his life (not just in chess but also in every field). Let's play and have fun. This is a gift chess has to offer.