How can we be confident, assertive, positive without becoming proud?

From Sridham Vrindavan Pr:

In the real world having confidence, self-esteem, & being assertive is important & naturally expected in one’s personality when facing people generally,

I believe it is very important to be encouraged & encourage others in devotional life & have a overall positive attitude when one is practicing Krishna consciousness. since history has proved that devotes of the lord are tried & tested and face a lot of difficulties

What should be a good thought process to keep in mind at all times so we feel motivated, positive and make sure we do not have a false  ego