How to revise Economics

I had started my preparation with Economics in December. When I attempted to study Eco now, I realise that I don’t remember anything. This is kind of sending me into a panic overdrive. Can you give me suggestions as to how I can revise Economics?

Shoud I go through my flash cards or should I do practice questions and read up the relevent theory for each question as I solve it?

I was the same way in that I forgot alot from the time I went over it the first time, but after 2nd review your remember and retain alot more. A good way to do a quick review is to print of every LOS for the economic units and read them. Helped for me at least.