I NEED HAIR HELP!!!

Hi...my name is Susan. I'm 25 yrs old. I started coloring my hair about 9-10 yrs ago. At first, I used
Sun-In and/or peroxide/lemon juice and water. Then I moved onto professional highlights, and then permanent color.
Over the years, I've noticed my hair getting limp and lifeless. I need a new hair boost! I was thinking of coloring my hair back to my natural color (dark brown) and maybe adding some blond chunks to it. I'm also trying to grow my hair out again - I had a short, pixie cut for the summer. I'm on a tight budget, so I would need to do this myself at home. Does anyone have suggestions as to what products to use and what would be the best for my hair to bring the life, volume, length, and shine back to it?

Thanks a million,
Susan (violet1974@aol.com)

My hair is still rather short - it's about 4" long.
As for the color, I've been using Feria in the color Cardinal, but I'm due for another coloring, so it's kind of fading out and you can see the dark roots appearing.
I wanted to do something different, and my boyfriend suggested I go back to my natural color (dark brown).
But I'd like to put some highlights or chunks with it.
Still debating....looking for suggestions on what to use and how to go about it. If it makes any difference, I have brown eyes and fair skin.
A good few years back I had blond hair about 1/2 way down my back. But I'm not sure if I want to go that long again -
maybe shoulder length or just below - not sure yet.

Thanks,
Susan