So then study endgames.
I used to feel that way, then I think my endings improved, at least relative to my middlegames. So now when the endgame approaches, I'm totally confident that I can hold drawn but slightly worse positions and I even think I can get a win sometimes out of a slightly better position. That's the whole key of endgames. The sure wins are easy, the sure losses are just gone -- the dead draws are dead. Maximize the points you get out of the "slightly better" and "slightly worse" games.
I'd rather have a win and a loss, all else being equal.
It's funny - Kasparov's comment about the Marshall was exactly that it was boring and drawish. If I recall correctly, something like "another high-level game, another Marshall, another draw".
Well it's super played out by the GM's, but considering it took that long, and that most amateurs wouldn't play out 25 moves of marshall theory, I think it would probably lead to some interesting play. It was the one time I played against it. it's an interesting opening, but most of the complications had just been played out at the top.