Too much weight loss with pre-diabetes diet

My second post here, I have had glucose numbers in the pre-diabetes range for sometime. A month ago my numbers were 115 glucose and 6 AC1. So I cold turkeyed all sugars and high carbs and I am now exercising like I’m training for the Olympics. My diet is pretty much for diabetics. So in this last month my weight is down from 205 to 180 in a month. (It was actually 217 in January). I do not want to lose any more weight but I don’t want the sugars and the high carbs. I have gone back to lifting some weight. I am 67 and 5’9. How can I maintain weight at 180? How can I get healthy calories? Any thoughts and ideas are greatly appreciated. John J.