Jason Koh, I am in the same boat as you. I have Zero BJJ background experience, I have only been training for maybe a month and a half combined (When you count the classes I skipped at the start as I was getting back into shape) and I am getting my ass kicked by every member of our 10th P club. I finally noticed some inprovement when I concentrated on one or two moves, and tried to get my opponent using ONLY either one of them for a couple weeks.
For me it is Darce from side control and a North South leg headlock with a lock-in hand choke. I worked those moves and didn't really try anything else. It's tough because we're going up against students that are learning the 10th P system, so they know what to look for, and they have more experience, so I am getting eaten alive. Plus because I was only going for those two moves, they all caught on pretty fast on what to defend against: but once in a while lately I have had a victory.
Now that I stuck with those two moves, I have started adding in the ghost escapes and they are working very nicely for me. I can't promise you that my approach will work for you, but I know that by only focusing on those two moves for a while, I cemented them into my repertoire, and I can try to work into those positions without thinking about it.
So once I feel the same with Ghost and Spectre, I will have four techniques that I am confortable applying on a resisting opponent, and then add a couple more.
Try it out. It might help you. I don't know, it helped me.
As far as defense goes, I am my own worst enemy, because I keep handing my opponents an arm bar opportunity on a silver paltter. I have to concentrate on avoiding the arm bars and triangle chokes for now.
I'm just writing this to let you know that you're going through what every new 10th P BJJ student goes through, so don't get frustrated or dejected. Shit, on my first night out I got tapped out by a 12 year old with an ankle lock I had never even seen before. We all have to leave our egos at the door.