Can you expand on what you do at the gym and when you started your most recent routine?

As always, abs are made in the kitchen. See: skinny folk

Skipping meals doesn't help you lose weight in most cases. Your body optimizes for the expectation of not having food and stores more energy.

Eating smaller, filling meals helps more. I actually don't know of anyone who's lost weight from salads. Usually they're just left feeling hungry and usually add dressing to compensate (which just gives you completely unfilling calories).