Tis true, and yes it is frustrating. However, a few years back the ailing Houston Rockets went on a spontaneous 22 game win streak, which put them in the playoffs against the Jazz (who then beat them).
The season just barely passed the halfway mark, so there is still hope. The season is not over yet. Every time things look bleak I just remind myself of the 2004 ALCS between the Yankees and Red Sox.