I went through those very same feelings,then some family situations triggered this whole thing, I was then DXed with Bipolar-II(mild) and ADD (mild). I see my pdoc regularly, and follow my medicsation regimen. I was DXed in 2000, so in the begining I also was in "talk therapy" besides seeing my pdoc for medication monitoring. Are you seeing a pdoc? Do get therapy? Are you are any meds.?
All of this can help tremendously, sometimes it takes awhile for it to all kick in, but once it does, I can put the feeling into words, but it is really good.
In the begining of being DXed, I, like many, have a hard time accepting it and dealing with having a DX or 2, that's the hard part, once you finally accept it and make the effort to persue treatment, things start to move forward.
You will get some days that are down, and then some good days, but even people without disorders, have those days, we all do. Medication at it's right dose, especially mood stabilizers, really are important in taking control of this disorder. Just don't give up hope, and feel free to come to the forum(s) and talk with others.
Welcome to PC.
Take care now,
DE