Is kinda hard to motivate yourself, I go through phases when I am addicted to being lucid, others when I would rather just crash out and be unconscious. I find watching dream related films, reading a good book, listening to mysterious music all help put me in the mood. You can't fake wanting something though and sometimes you can wear yourself out from trying too hard, so just ask yourself what really matters to you. Remember just how much you can do in a dream!