Self-Worth, Should I have any?

How would you define self-worth?
Would it be too simple to say that self-worth is value that comes from within yourself? How about defining it as the confidence that there is something in you that makes you worthy of recognition, of love, of time, etc.
When your self-worth is in question, do you ever try to convince yourself that you really do matter?
How many times a day do you question your worth? How often do you hear the nagging voice that says you're not worth it, you don't really matter?

That little voice of doubt is a strong motivator. It motivates us to take on certain identities.
I'll introduce three, because I think most of us can identify with at least one of them.
First I'll mention the one closest to my heart, the High Achiever.
This is the person who works really hard to prove worth by actions. It might be that he has a skill or talent, and therefore, he needs to stay on top of the game, always being better or the best. Some High Achievers need to be the best in everything they do, leaving them with no room to fail.
Then there is my second "favorite", the Criticizer.
This person elevates his self-worth by cutting down others, whether verbally or mentally. He finds comfort in the thought that others are worse. He may surround himself with lessers so that he feels worth more, or find his worth boosted by keeping company with others who are just as critical.
And finally, there is the Self-Loather.
This person takes on a false identity, the opposite of confidence. He exaggerates his negative qualities, talking badly about himself, so that others will contradict and feed him positive comments. He manipulates people to say the things he needs to hear in order to silence those feelings of self-doubt.
So, do any of these identities fit you?

There is a flaw in the "self-worth" tank; it is full of cracks. You know this by experience, because no matter how high the level of worth rises in your tank, it never seems to stay there. That's because self-worth can't exist on its own. It needs the constant re-affirmation of others.

Isn't self-worth just a disguise for self-centeredness?
Sadly, when I am centered on self, it is impossible for me to love.

“Not that we are adequate in ourselves to consider anything as coming from ourselves, 

but our adequacy is from God.” 

2 Corinthians 3:5

"We put no confidence in human effort. 

Instead, we boast about what Christ Jesus has done for us." 

Philippians 3:3

Human effort, my own goodness, my abilities to keep the law, my "ability" to be perfect, what gives me value on this earth, whatever commends me, my zealous devotion, my spirituality, my awesome ministries, none of these should be a source of confidence. Paul says that he once thought these things were important, but now considers them worthless, garbage, worthy of the dung heap.

Considering all this, I have to ask myself the question, is self-worth worth having?
Should the believer, walking in the Spirit, expect to have self-worth, or is it one of those things that should die when he carries his cross?