Emotional regulation does not mean feeling less. It means having more options between stimulus and reaction.
James Gross described the process as five intervention points ordered in time: choosing the situation, changing the situation, directing attention, reappraising meaning, and modulating the response. The earlier you intervene, the cheaper it is. Reappraising an event before it floods you costs far less than trying to control your face afterwards.
The last strategy — suppression — is the one most people use and the one that works worst. Gross's studies consistently show that suppression reduces visible expression but not internal experience, increases physiological arousal, and impairs memory for what happened while it was in use.
Regulation is learnable. It is a skill, not a trait — and it is the explicit core of dialectical behaviour therapy.