Considering yourself as a positive identity even in the situation where you are not, would be better .

Here is how:

Every thought you think has an effect on how your neural pathways gets structured. In psycology there is a rule "Use it or loose it" . More you think, stronger the pathways gonna get

Neuroplasticity : Ability of the brain to modify its structure at any age.

By combining both, you can modify your identity into a positive one.

Consider yourself identifying someone as Calm, on repeating this, your brain starts believeing it and reject anything which is against this belief.

Now you know how your thoughts can make your identity strong. Its up to you to choose your identity now. Will you continue considering yourself as weak and strengthen this identity?.

Or consider yourslef as someone who is more on the positive side and stengthen the other pathway.

In the book As A Man Thinket by James Allen, the author says " A Man does not get what he wants, but what he is "

Visualize yourself as the identity you wanna be as if you are already that identity, rather than wanting to become that identity.

Wanting something creates lack, and this strengthens the identity of lacking and lack is negative in itself.

Instead focus on visualising yourself as you have already become the identity.

Visualising youself as a calm person will strengthen the network and makes your brain believe it

Once this is done , brain will reject anything which is against this belief.