rest assured, nothing has been taken away from you. you said it yourself - you can't relax enough and you feel a rush about your achievements. even your style of writing suggests, that you are always in a hurry, always being on edge about something. my suggestion is that you find a way to calm yourself down before advancing with any kind of practice, be it OBEs or clairvoyance. find some kind of breathing meditation that helps with your anxiousness, and the OBEs will return. I have to agree, that spirit worlds are indeed full of stuff that isn't nice. the trick is not to be afraid, but simply to be careful. you wouldn't dive in the river head-on if you didn't know how deep it is, the same holds true for almost every practice. one step at a time and you'll be fine good luck!