Best thing you can do is buy Lange metal calipers, and do 3-7 site skinfold measurements. Impedance type BF% devices are notoriously inaccurate and should
be avoided.
Your acne is caused by the large hormonal shift from high test to low test you've experienced. If I were you I'd jump on accutane at 20mg/day ASAP. It's only going to get worse.