Don't fear the endgame, young Skywalker
One reason I feared taking up the Caro-Kann and Slav as black was my pathetic endgame play. These openings are known for being solid, quiet, and reward those with good endgame technique. This sort of freaked me out, but I decided the only way to improve at the endgame is to actually reach an endgame! In my recently acquired book on the Slav by Vigus, he directly addresses the endgame wimp:
If you fear that your endgame ability is insufficient (especially under modern time restraints), and that you need to decide the game while plenty of pieces are still left on the board, my advice would be: try to stop worrying about it. Simply by getting used to playing endgames out, you will improve, and if you gradually attain the reputation of being a 'boring grinder,' so much the better! Then you might find that opponents take risks earlier on in order to avoid your fearsome 'technique,' and that you are not called upon to display your prowess after all.Well, one can hope anyway.