I need some help regarding codeforces contest. When i solve problems during regular practice sessions i am able to solve about 1400-1500 problems atleast 80% of them without having to take help and in reasonable time.But when i give contests of codeforces somehow i cannot even solve B.I have taken some breaks now and then from codeforces due to same reason. On the other hand i perform okayish at leetcode contest ie solving 3-4 regularly in reasonable time.I really want to do cf but i get demotivated and frustated on seeing my performance on codeforces. My codeforces rating -> 1000, leetcode rating — (1900-1950)usually. Please give any piece of advice you can/want.