When I Googled your lyrics or combinations of, the #1 hit I get is "I'm Not Missing You" by Stacie Orrico but I don't believe that's the song you want.
Try the following songs:
"It's December (And I'll Be Missing You)" by AUDREY HANNAH
"Forever Autumn" by the Moody Blues (not a female singer)
I did find numerous artists with songs titled, "Without You" or "Without You Here", such as Eve 6, Finch, Goo Goo Dolls, Christina Aguilera, Aaliyah, GEORGE STRAIT, etc. but none were a good match for your lyrics.
I did not want to give up without finding at least a substitute for your song.
One song that stood out to me was "Caution to the Wind" by Striking 12
I remember
All you taught me
How you were so strong
You told me,
“Never hold back anything
Who knows what tomorrow brings?
The Fates are cruel, so don’t you let them win”
You lived your life just like a flame
That burned out fast but seared your name
Across my heart and everywhere you’d been
Caution to the wind
Sorry for you loss and wish I could have been more help in your lyrics search...
Them that can, do; them that can't... memorize Artist and Title