A1C 5.9 What are the changes I should make right away?

Hi All

10 months ago I was at 5.7 I didn’t take it that seriously but today it is 5.9 and I’m panicking. I’m not obese, I don’t even have a sweet tooth, I don’t understand why this is happening.

I’m 5.2ft, 63kg and 33F. Since Covid my activity levels dropped but in past 4 months I have been doing cardio. I’m Indian so my diet is full of carbs.

I’m actively trying to lose weight down to 55kg. What are some immediate steps I must take in order to regain my health? I want to clean up my diet sustainably and then do a blood check in April end.

What foods can I eat, what can I avoid, how much exercise I need? I have no history of any illness so this prediabetes is bothering me.