1. If you mean incubation, then yes. You think about something for a long time, or ALOT. This requires some practice and visualization. Visualize the place you want to end up alot and hope for the best. OR you do a WILD and enter that place by visualizing it right there and then.

2. Everyone dreams EVERY night, it's just a matter of recalling them. That's why you're keeping a DJ, to improve your recall.

3. Focus on remembering the dreams and don't give up! Vividness and stuff like that will come along when your memory gets better. It will take time to improve your recall, but it will happen.

4. No. When you fall asleep right after you've written it down, you will end up in REM again. Since you've already slept 6 or so hours, you will have longer REM periods and little deep sleep. When you fall back asleep and wake up again, 10 minutes can have gone IRL and you've already had an amazing adventure lasting more than that.

The thing you have to realise is that LD'ing takes TIME. Alot of it actually compared to other hobbies you just start doing right away. Just believe in yourself, read other people's DJ entries and set up a nice goal. Try WBTB also if you can, it's a great technique that works for most people.

Good luck and keep on dreaming!