(This is my opinion, based on my experiences. This shit is subjective.)

I don't think going into a trip with a "mission" or to try to get out of a rut, or deal with past traumas, etc. is the proper way to get anywhere except possibly in cases where someone who knows what they're doing and can direct this "therapy" or whatever you'd call it.

Here's where you kinda 'went wrong': Mushrooms make you have looped thoughts. They just do. If you don't recognize the pattern, you can spend hours obsessing over the same trails of thought. They don't always go somewhere. I think of it like this for some stupid reason- Imagine your mind to be a forest. There are trails cut through- tons of them that you've cut throughout your life going to different places. You walk them all the time, you usually know your way about and sometimes you cut new ones here or there. Mushrooms turn that forest magical. They create portals that bounce you around from path to path and back again. They create splits in your trails that weren't there before, some leading to new discoveries, some leading to lost paths you haven't walked since childhood. They also create these loopy loop trails that just drag you around and around. The trick, I've found, is how you walk. The way you go into the trip will determine the outcome. Wanting something specific from the trip is a way to frustratingly run into circles that only let out to dead ends. I think the trick is letting go. Don't go into the trip with a question or demand, but take it as an experience you're doing for the sake of having experience. The same reason(I guess) that people sky-dive. Life is this series of fleeting moments, and this will be one of them. You only want what life is willing to offer you, and that's all. I've had shitty trips, I've had those same experiences. The anger is strange and unexpected, for all you hear of these happy fungi, but that can happen. The whole range of human emotion is open. When I learned to stop fighting the current and let myself drift was when I really got the hang of the mighty mushroom. Next time, if possible, take the five grams. But do it right. Try to enjoy it before you try to get something out if it, or have some big breakthrough. If that was going to happen it will. Just get some friends and head to some hiking trails or a lake or wherever you feel like you're really away from the streets and shops and cars and people on their merry way to getting cheeseburgers or cargo shorts or whatever (if you cannot get away from these things I guess stay home. But that sucks.), and bring a couple good friends. Plan out the day so you're not gonna get stuck out in the middle of the night (or at home- try to get some trippy stuff in there, maybe? You'll figure it out). All I'm saying in this insane half-tripped out nonsense is don't make such a big deal out of it. It isn't a cure for anything if you're trying to make it one, but if you just allow yourself an experience as opposed to forcing something you don't understand to deal with a problem that you don't understand. I'm sorry if this wasn't in any way helpful, and I realize the metaphor I used is the most ridiculous shit ever, but I'm just having a hard time conveying what I mean I guess.