I can have lucid dreams nearly at will with autosuggestion, but I can never remember what I wanted to do? I just go along with the story. How can I remember what I want to do? Also I have trouble with vividness, how do I increace that?
Since you have good results with autosuggestion inducing LDs… you should be able to include your goal into your autosuggestion.
Vividness can be increased in two ways.
- Using commands within the dream ie saying “More vividity!” or “Vividity times 1000”
- General improvement of dream vividness can also be done by improving your dream recall.
well firs write down your dream goals- make sure there are many, like say 10 of the things you really wanna do- that way you’ll be able to remember at least one 
before sleep, gothrough the steps- sora like a surgeon visualizing a surgery that’s about to occur. like “ok I’m in a random place, wait, hand RC, o wow a Lucid! quick what should I do, oh, yes! …”
If you cannot think of what to do then you are not fully Lucid. What you are is in a stage where you know you are dreaming but your mind is still ‘sleeping’. Including stuff like lucidity now! in autosuggestion will not necessarily help. Include things that make you think like small calculation etc. Unfortunately this might make you wake up the first few times.