Quite often, including last night, I will go lucid. Once I go lucid I find that I'm able to control my environment very well, but I usually wake up within 10 ot 15 seconds (which is much better than a few months ago) or fall back into a normal dream pattern in about the same time.
I take B vitamins and meditate before sleep to increase dream activity and focus on dream signs.
What can I do to be lucid longer?
I'm sure this topic has been raised before, I don't have much time to search endlessly for where.