Greenleaves,
Therapy can't change who you are. What it can do is teach you new ways of coping, help you set goals and accomplish them, help you change behaviors you want to change, help you examine your thinking and see how it affects your feelings, etc.

All of these things are ways of thinking, feeling, and doing. But the you who is greenleaves will always be you.

Don't go into therapy for anyone but yourself. I agree with you that DBT could help you cope when you are feeling upset. I think that's a good insight.

If you go to therapy, it doesn't mean there's anything seriously wrong with you. It just means you want help with something, and you are seeking the guidance and help from someone trained to do that.

Take care,

gg