I once met a woman who'd been in therapy... and it seemed like the big thing she'd learned was to ignore everything she thought in the first hour of the day. That's when the negative stuff will try to bring you down, she said, and she was right about that but not much else. You come back from the night with your head and your soul empty, and bad things try to fill you up. There's a lot to get exercised about, if you let it. But if you've got a task, something to fill your head and move your limbs, by the time you've finished it the day has begun ands you're onto the next thing. You're over the hump, like I said.
When you're born a light is switched on, a light which shines up through your life. As you get older the light still reaches you, sparkling as it comes up through your memories. And if you're lucky as you travel forward through time, you'll bring the whole of yourself along with you, gathering your skirts and leaving nothing behind, nothing to obscure the light. But if a Bad Thing happens part of you is seared into place, and trapped for ever at that time. The rest of you moves onward, dealing with all the todays and tomorrows, but something, some part of you, is left behind. That part blocks the light, colours the rest of your life, but worse than that, it's alive. Trapped for ever at that moment, and alone in the dark, that part of you is still alive.