this is simple. you lost 20 pounds already and it is now harder to shed excess weight. why? cause you crashed your calories and took down your metabolism along with it. calories in went down= calories out went down. so end result is now you are stuck. this is why i hate calorie crashing diets and they don't work.
do you honestly know a single person that did a calorie deficit diet and over time kept that weight off? you don't cause we know it does not happen. in fact the largest study ever done on this showed that after 7 years of calorie deficits 99% of people weighed the same or MORE. how many people have done that stupid hcg diet of 500 calories a day and had permanent weight loss? none of them. thankfully you found fasting now
fasting is actually going to be the best thing for you to do going forward. with fasting you don't ruin your metabolism, in fact it gets slightly bumped. it also reverses the hormonal problems that made you fat in the first place.
so you need to learn some fasting protocols and apply it in your life. you can listen to the evo podcast on fasting, hit me up, etc. lots of info out there