For what its worth, everyone's been where you are now. Alot of people that start out are ulta competitive. this usually gets in the way of learning. My suggestion is to take the "student role" with the guy you're training with. Ask for his help. When you get caught, ask him how he got you. Ask for suggestions.
Also slow down. Its not a speed contest. Takedown, control, position/isolation, submission.. in that order. Keep everything tight.
There is alot to this sport and it will take time before things start coming together.
Stay with it and be consistent. Pick an off day and work on cardio if you want something to do related to training.
Best of luck.