I am doing CF for about one year. But still , I am newbie here. It is not like that A,B seem so hard.I become so nervous during cf round .

During contest suddenly my head becomes blank and I feel like I am caged and so I cannot think further . As a result , I cannot come to solution for any problem further .

It is destroying my confidence level day by day.

And during practice , I do not follow any particular strategy . Because I get confused what to do! Sometimes I solve from cf according to junior practise sheet(provided by an arabian coach may be, found online), sometimes I solve from light oj/uva and sometimes I learn Algorithms . Algorithms I know -

Bfs,dfs,mst,dijkstra,nim,trie,kmp,binary search,matrix exponentiation, dp(coin change,knapsack,LCS,LIS,edit distance)

I have solved average 9 to 10 problems on these topics.

I know more algorithms like segment tree,LCA etc on which I have just solved 2 to 3 problems.

I will be grateful if anyone will share their practice strategy and how can I overcome my problem of being caged during online contest? Any advice to practice more efficiently will be highly desired :)