It's not over 'til it's over. DB'ing isn't always an instant fix - we don't get to wave magic wands over our marriages...I wish it worked that way. Keep learning ways that work.
And, while not being naive, don't give up hope either. From everything I've read here, people have gone much farther down this dark and desperate road and still come out the other side. Many have even repaired their marriages despite the odds. If you haven't yet, read some other people's stories - it may help.
undefeated 24 H 24 S's 4, 2, 1 M 5 yrs
"Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all." ~Dale Carnegie