That's tough. One thing I know is that it isn't going to happen overnight. Maybe you could find one thing, or one person, at a time that feels trustworthy to you. Then build from there. Try to expand that one thing and broaden it, but not too fast, just as it starts to feel comfortable to you. Keep looking for more things that feel like something you can believe in. You can use affirmations to remind yourself about things that feel safe enough to believe in, once you are comfortable enough to believe. Start small. Maybe for now you can believe that you will have a nice warm breakfast in the morning and it will feel good. Or choose something that is relevant and helpful for you, if that isn't. Build from there only as you are ready. Don't push it faster than you can go. We don't want the whole thing to collapse on you. But try to add to it regularly so that it is growing all the time.