Welcome CGtraumfabrik

7-8 hours of sleep is pretty good. I find on days that I can sleep 8+ I have the best luck snatching up a lucid or recalling dreams in great detail.

I'm not very well practiced in the art of using lucid aids, but I would advise you to do a bit of research before using anything. Some aids that people use to enhance dreaming can be harmful in large doses.

If you are feeling particularly stressed before bed, have you considered trying meditation? I don't use it every night, but when I'm feeling high strung before bed I'll do some light meditation to calm down.

I wouldn't stress about SP. Unless it's something you experience already, it's unlikely it will be a problem for you. I've had successful WILDs/DEILDs, etc and have never experienced SP.

Good luck! If you have any questions feel free to PM me