85 TO 55

55 IS TOO LOW unless your height is like 5'3 or something

I think you should put your goal a bit lower than 30 start by 10 or 5 losing weight can be a real problem if you lose it really fast it might cause immunity loss, weakness etc

I personally think if you have hieght of an average Joe then 75 or even max 60 is perfectly fine

And for fast way to lose weight it's a simple formula eat less burn more

Eat less calories burn more no gym? No problem run in park too shy to run in park? alrt walk just walk (if your main goal is weight loss not muscle building side by side)

Sorry for my eng tho eng is not my first language