Just came out of selection

Ok so, didn't make it to rouge stage, passed all the tests but I didn't got selected, was told to come back in 3 months and do more paliers, some people did less and got selected, some people did more and got kicked out, it's hard to tell what they are really evaluating at some point. If you have questions I could try answer them. Also, research all that you can, a lot of people go knowing shit about the process.