Sometimes, telling the truth is not mean. It can be blunt, and it can hurt, but it can shine the light on the problem. There's a time to be comforting and soothing, and a time to be more forceful.
Perhaps you were told that if you don't make certain changes within yourself, you'll lose the companionship of your grandchildren.
It seems, from your other posts, that you are looking for love everywhere, and from everyone, except within yourself. I don't know if you believe in God, but it seems that you need a source of inner strength. Forgive your abusers, forgive yourself, and develop some strength.
Physical and emotional healing are a lot alike. They both need to be done in stages. After recovering from major surgery, you don't jog down the hospital hallway. They help you sit up, making sure that you're not dizzy. Then you do some basic movements from the safety of the bed or chair. Then you stand, with a walker or nurse's help. Then you take those first steps. Then you progress from there.
But during the recovery, the hospital staff will make sure you're eating healthy food, maybe participating in hospital activities like arts and crafts, or going outside for a little sunshine, or having a visit from friends or the pets who visit with the therapy program.
So you need to take some basic steps. Figure out what gives you strength: religion, your heritage, your beliefs, things that are important to you (your good qualities). Make sure you're eating well, exercising, going for walks, getting involved with the community (volunteer, or visit friends, or just walk in the park and pick up trash), or plant some vegetables or flowers and tend them frequently. Pick up an old hobby or find a new one.
Make yourself healthy. Get some sleep. Get a physical exam and get checked for anemia, blood sugar, weight, etc. See a nutritionist for some vitamins and to evaluate your eating habits.
Did you know that there's a difference between post-traumatic stress, and PTSD? You might not have PTSD. That's a real mental illness. Post-traumatic stress isn't a pervasive disorder, although the two share many characteristics. Perhaps you can reassure yourself that you went through some difficult, and even traumatic, episodes, but you are not mentall ill. You don't seem to be completely mentally healthy, though, either.
But don't expect your happiness and well-being to come from others. Don't rest all your unhappiness on others, either. Your parents certainly contributed stress to your life, but now you're contributing that same stress to others. Cultivate an attitude of thankfulness, count your blessings, create a healthy environment for yourself full of healthy whole foods and exercise and hobbies and sleep, continue to develop strength from whatever source is important to you (not your past, but religion, God, reading and meditation, prayer, yoga, walking and reciting poems, sitting quietly in the park, hiking in the forest, bird-watching, etc). Become a person that your grandchildren, and perhaps even your daughter, want to be around. Don't make that your goal; make health and joy your goal, and you'll find that people enjoy being with that kind of person.