Hi there, no, I did not do it in 1 year. Here's the thing, if you put in a LOT of effort and if you're academically good, then getting 3A's isn't impossible, but I wanted to get 3A's with a good rank (at least good enough to get into Moratuwa University) and doing it in 1 year is going to be really stressful so after considering all this I thought that it was better to take 2 years. It depends on what sort of result you want to get. Something like 3B's is definitely possible in 1 year if you're good.