Dr. Imad Bayoun discusses the significance and importance of the last 10 nights of Ramadhan and laylatul Qadr (The Night of Power). He reminds us that it is not too late to begin or continue benefiting from Ramadhan especially in these last 10 nights.
What I've learnt is that the Prophet SAW would focus on the last 10 nights (Iktikaf) to attain the Lailatul Qad'r, which usually happens on odd nights, most likely on the 27th night. If you encounter that night, say "Oh Allah, You are all Forgiving, You like to forgive so forgive me". So plan such that all your energy are focused to reap the barakah of this Ramadhan.