Is it reasonable to expect to get to 12% body fat from doing PBF and fasting 16 hours every day, with a 24 hour fast about once a week?

I started LC almost 4 years ago. I lost about 80 pounds. I've been at the same weight for almost 2 years, but I didn't really exercise and IF is fairly new for me.

I'm 6ft tall, 38in waist, 15in neck, 190 pounds. I'm guessing my body fat is around 20%. I would like it to be around 12%. I looked at LeanGains and I'm not really up for taking all the BCAA and I don't have any interest in being < 10% body fat.

With the addition of IF, I'm still not positive I'm getting results, but I'm in no hurry. I just wonder if my expectations are unrealistic.

Can anyone give me a reality check?

Thank you.