I am happier, never moody anymore.

I started the IF and the keto diet on the 5th of June 2020. I started by eating from 4.00 pm until 11.00 pm at the latest, but I am now comfortable eating between 6.30 pm and 9.00 pm. I have lost 11 kg in 2 months. I am a 52 years old woman, I started at 135 kg (I am 1m77 tall). I have not started exercising yet, as I had back pain until 2 weeks ago. But as my energy level is getting higher, I often find that I stay active without needing to rest for much longer than before I started losing weight. I am happier, never moody anymore.