Still feeling like shit

Still feeling really crap, no one cares or at least thats how I feel. If it wasnt for my kids I would run away and escape my life, cant do that to my girls they are all i've got to live for. I worry about what I will do once they grow up and leave to get on with their own lives, where will i be?? Selfish cow I know but thats how I feel. Dont want to end up being a burden to my kids, dont want to live the rest of my life feeling like this, need help but dont know where to turn