First off, great post. The bolded part isn't quite true though, IMO. You can trust yourself, but not the part of yourself yakking away with the internal monologue in your head: that rat bastard will ruin you. The part of yourself you can trust is deeper, closest to the source.
Yeah, i completely agree...
luckily i was never in the position of not being able to trust myself anymore. but a good friend overdid it with mdpv and came to this point...
you also can trust your family and friends, they also have this part deep down that can be trusted, everyone has
One of the insights i gained from my most clear lsd trip (high dose in the mountains with one close friend, with good preperation in the form of meditation the day before the trip) was worded:
"everything has a center - in it's center everything is one"
This center is the part one can trust, imho....
and a short story about my recent experiences (after having to face some bad things from a whole bunch of friends who ratted eachother out at the police some years back) with trust:
Christmas 09 i was studying abroad, i was financing the rent of my flat with a room full of plants
I had everything planned out as to harvest shortly before christmas break, so i would be able to return home for christmas. Well things didn't work out like they should and at the start of christmas break i was having a room full of plants nearly ready to harvest, but not quite yet. I also had promised my girl to come home for christmas and already booked my flight. So what did i do?
I gave the keys to the appartment to a nice guy i had met there, so he would take care of the plants. I knew him for 2-3 months then, he was jobless and the only topic in the whole country was the crisis at this moment. (also, he's a druggy and i met him through the internet in the 1st place :D )
I returned in january after 2 weeks at home... and found the plants healthier than when i left, at the door to the room there was a ziplock full of some of the finest weed with a message:
Happy Christmas!
and happy it was indeed... the feeling i got was one that no drug in the world could match! to be proven that you can trust someone is something to never forget!
Today i call him my brother

and our friendship will last until the day i die...
This day gave me something i had thought i had lost
sorry for ot... but i think there's not much left to say to the op anyways...
p.s. if you feel your trust in people fading - put on bob marley's - who the cap fit, and listen!