Hi shelly - I don't think greg is going to show up anytime soon.
There are many posts on this site about "bad" or "uncomfortable" trips - that's nearly half of the reason we're (I'm) here.
Bad trips are some of the hardest experiences to deal with - but that is what they are, simply an experience. They can make you feel insane, make you feel uncomfortable, make you feel angry, sad, you name it. The opposite goes for euphoric or happy trips, of course.
Your brain is a giant sponge of information. A giant, cosmic filter, as my dad puts it. You aren't really in control on what you pick up and don't pick up - you basically suck up way more information than you think is necessary. When you go on your first psychonautical voyage, especially if you're not ready - your brain will start to panic, and/or get confused.
Our minds are set up so that we need to know what is happening, but with psychodelics, the actual fundamentals of WHY we trip are not easy to explain, and thus a solid understanding of what is going on is nearly impossible. The layman will find this hard to agree with, and not truly understand how confusing a first trip can be.
So, when you take your first trip - and your mind starts to go down a path that you didn't know existed (but you soaked up with your sponge / filter somwhere along the line) you may start to feel uneasy and want some answers. The answers you want are not going to come because
1. you are tripping.
2. the answers literally are as hypothetical as can be
3. You are seeking something with the intentions to solve things - which in fact will worry you more - since this problem is not a classical problem with a solution that can be "found".
The more you trip the more you start to let go and allow yourself to float with your emotions and thoughts, allowing them to be expressed, but never running from them.
For example - I wanted desperately to get naked and run around my town on my first trip. I thought I was burning up and needed to cool off. A bit of instinct told me it was too cold out and I was acting "crazy" and needed to stay inside.
The thought of me burning up was something I had picked up along time ago from who knows where - maybe the propoganda about MDMA making you burn up. The thought that I was becoming "crazy" is as common as any nowadays - the media thinks EVERYONE is crazy. We get it instilled in us from birth.
I have to go now - hope that makes sense / helps.