I have been practicing competitive programming for last 6+ years in codeforces and other online judge platforms, but still I am struggling in contests please someone analyze my profile and suggest me a better plan. I am going through anxiety and depression for that.

I notice there are some problems in binary search category where you have to find k-th element of a sequence like[Ntarsis' Set][K-th Not Divisible by n]. How can I develop this kind of problem solving approach.

How can I attack problems like,"minimum number of operations to sort an array or permutation", Can anyone give me some lists of problems?