@Littlerose84 - Yes, I meant start now so that you retain muscle while losing fat but also, when you get to goal weight, you have more tone and less (typical after large weight loss) flab.
Right now that extra 90 pounds could seriously cause a knee problem that necessitates stopping the dancing, walking etc. for a while. Then you are set up for a weight rebound due to becoming depressed about it.
Also, endurance type exercises (other than maybe just walking) will drive hunger - any calories you burn may get consumed (and more) on an “eat to satiety” diet like Keto. A 90 pound weight loss is much more likely to be successful focusing on Keto and fasting - and doing strength training - not to burn calories but just to develop a nice frame for your goal weight (and to add flexibility while avoiding injury).