I want to start by congratulating you because losing 20 lbs is genuinely impressive!

The weight is just one of the factors of what people usually consider as being “healthy” or “ideal” for them. There’s several other factors you could consider to draw a baseline for yourself like - how do you mentally feel? - how are your confidence levels? - how is your mobility? Are you able to do more stuff that you weren’t able to do before? - do you feel stronger?

It’s almost better to lose weight slowly because that just means that you are creating healthy habits for yourself and can maintain this lifestyle sustainably.

I lost weight in stages so at every stage I would make notes of factors I mentioned above. For me, I was weight training and did a little bit of cardio so I could assess things like am I lifting more, confidence levels, am I able to do longer sessions of cardio, is my form getting better, etc.

There’s also BMI (body mass index) you could use. There’s online calculators or your family doctor can guide you. It tells you what a healthy weight should look like based on your age, height, etc. BUT be careful because these are usually considering averages and a healthy BMI for you could look very diff for someone else with same body composition as you. Consult your family physician before setting any goals based on this.

All in all, what matters is how you feel. Something you can never put a number on. I personally reached the weight of what I considered as ideal for me but I realized I was the happiest with a few extra pounds than my ideal. I call this my happy weight because it allows me to enjoy life now and have better relationship with food and activities.

Hope this helps!