THey get longer trust me. If theyre real short make sure to make a mental note that the enxt time you get lucid you will get very involved and make a plan for yourself. Decide what to do and everything. I used to nly have 1-5 minute lucid dreams, where 5 was an amazing treat. Now my LD's are 10-20 minutes average with occaisonal long ones(30-60 minutes). Just dont stress, cause Im sure a long one awaits you soon.