Sounds like your insomnia might be the first concern to improve. Start with the basics:
- Do what you can to improve your sleep environment in terms of light, sound, temperature, and comfort.
- Consider the timing of your daytime and bedtime habits such as exercise, caffeine, stress, and excitement. You want to be calm and relaxed at bedtime.
- Wait until you feel sleepy before trying to sleep. Don't lay in bed for hours. Get up and do something boring until you feel sleepy.
- Don't use over-the-counter sleeping pills to treat chronic insomnia. They don't work for this. But melatonin is worth a try.
- Search "relaxation technique". There are many threads on these forums, often as part of a WILD technique.

Get a steady, good night's sleep first and keep a dream journal for a few weeks. Then dive in to the LD techniques.