My actions and words are expressions of self-love.

Listen to how you talk about yourself out loud, in front of other people.

The apology for taking up three minutes in a meeting. The joke at your own expense, deployed early to get ahead of anyone else making it. The *sorry, this is probably stupid, but* in front of a good idea.

Those are small and they are rehearsals. Words train the ear that hears them most often, which is yours. Dropping one habitual piece of self-deprecation is a modest edit, and it changes the atmosphere you spend all day inside.