control of emotions is 100% the exact opposite of what is needed and is actually the cause of most of the problems. once you control and effectively strangle your real feelings - they don't vanish, they just go undercurrent within and wait until they are 'allowed' to surface or are just triggered in a situation where the control lapses. the way to work with imbalanced emotions is to PROCESS them in private, safely - by allowing them to come out as sound. The result is a real peace, instead of a control that can itself lead to dangerous situations and which does not feel good.
i explained something of this issue here: https://steemit.com/emotions/@ura-soul/there-are-no-garbage-emotions-all-emotions-are-needed-and-need-to-be-felt-to-be-known