checkmating

I seem to have a problem "getting it done". I find that I am able to push myself into a seemingly good position, only to never find a way to checkmate and get the game over. In my hesitation my opponent manages to find some weakness and pulls off a win. What are some things to look for when you are in a good position and how do you turn that into a game ender? thanks in advance

You just have to know how to use all the pieces together. Try practicing some end game tactics, study your past games as well and see where you made mistakes.

when you are winning just learn to simplify as much as possible. if youre up a minor piece, a forced queen trade might be better than winning an extra pawn for example.