This topic is personal - it is your internal measure of how you value yourself, regardless of what others might think of you. Your internal sense of being good enough and worthy of love and belonging. I would say this rating can go up or down on any given day depending on how you are feeling and how you have been treated.

So many factors to consider when we talk about our worth and what thoughts we have around this.

Being clear on what you want and why.
What patterns do you need to break? It can often be linked to limiting beliefs about yourself and your ability. Often all in your mind and not actually valid.
Having purpose in the work that you do and the life you lead.
Being someone who can support and develop others, can assist with our sense of belief in ourselves.
The confidence you create when you back yourself and know how to effectively communicate assertively. Know that your opinion matters.
Know what you should ask for and how to ask for it. That could be the promotion you deserve, the salary increase you have earnt or the time you need to take to make the right decision.
The big one - being able to say no and and not needing a raft of excuses to feel better about saying no.
Believe in yourself and know it is okay to walk away from someone or a role because it no longer serves you. You do not need to settle.
Invest in you - do so with whatever means you need too.
Do not let your weaknesses define you - instead they are opportunities to grow and learn.
Be able to trust yourself and back your decisions.
Know that you are enough - always enough.

There is a difference between knowing your worth and linking it to your self-esteem. Value who you are and what you can contribute to the world.