Looking for that girl or guy like me!! I want to lose these extra 20 pounds now going forward!!

So here are my stats: I'm just over 5'2", I am between 130-132 pounds and just under 29 percent bodyfat. I've always wanted athletic body-fat percentage of at most 18 percent and stay there year-round. To compete in bodybuilding, I would like to get down to 14-15 percent at most for seasonal shaping. In the meantime, I want to see how I feel at 18 percent and then be gung-ho about competing on stage. I've fluctuated throughout my teens and twenties, but I am sick of it. I'm sick of feeling or looking just good enough to take off my clothes in good dim lighting, LOL, and I want to finally be free of being self-conscious of my extra flab and cellulite that I know mostly smooths out as my body fat drops.

Here surprisingly what has NOT worked for me in the past despite the advice of fitness enthusiasts:

1.) See how your body is in fitted clothes and don't pay attention to the scale. I somehow manage to fit into my fitted polyester shirts and skinny jeans just fine +/- up to 10 pounds of fluctuation (yes, same measurements in the morning, with no food and after going to the bathroom and in the same kind of clothes and not on my period). My fat seems to distribute so evenly on my body that I don't notice weight gain this way until it is past the 12 pound mark or so, which is already enough to cause frustration as that takes a couple months to lose that again if I'm going at a moderate pace! If I don't pay attention to the scale, I let go without knowing.

2.) See how your body looks in the mirror at the same time, same day, etc. Okay, I play some serious mental gymnastics and can think I look like a VS model standing straight and twisting my body when I look more like Jabba the Hut if I hunch over... Oh, and if the sunlight is kind decides to play around the clouds to hit my physique at the right angles, even better.