Worst training session ever today.
I don't understand how when people do weights they get stronger and progress to heavier lifts because I must have a backward body in the fact that I am getting weaker

Although the weight I lift doesn't really bother me it does make me wonder how I'm getting worse at lifting instead of better.
Anyway today's workout was push:
Gym Buddy Set Report on 30 Apr 2012
All Workouts and All Exercises
Between 30 Apr 2012 and 30 Apr 2012
30/04/2012 Smith Bench Press in Upper Body
16:28:10 30 x 8
16:30:46 30 x 8
16:32:06 55 x 5
16:34:39 50 x 5
16:38:15 50 x 4
30/04/2012 Incline Dumbell Press in Upper Body
16:41:27 15 x 8
16:44:12 20 x 5
16:46:44 20 x 5
16:48:46 20 x 4
30/04/2012 Incline Flys in Upper Body
16:51:17 15 x 4
16:53:24 12.5 x 5
16:56:15 12.5 x 4
30/04/2012 DB OH Press in Upper Body
16:59:22 12.5 x 8
17:01:28 15 x 4
17:03:52 12.5 x 4
30/04/2012 Dumbell Shrug in Upper Body
17:05:12 15 x 8
17:06:36 15 x 8
17:09:21 15 x 8
30/04/2012 Dips in Upper Body
17:46:09 0 x 15
17:47:20 0 x 15
17:48:48 0 x 12
17:50:03 0 x 8
Macros today are:
Calories 1846.5, protein 215.4, Carb 108.3, fat 56.7