That's cool - I love your spirit. You clearly aren't too concerned with needing to earn money at this time in your life so you should go where you want to and see how you enjoy the lifestyle.
I've managed to make a living out of this for a decade now and am fast approaching my 40th. I say enjoy...
Lebanon - That's an interesting choice, can I ask why you fancy going there? It's a bit different compared to us ESL asiafiles - but I'm interested in the market there.
CELTA is intense. Basically you have to devote a month of your life to learning fast, planning and performing a lesson everyday (and having that lesson scrutinised by tutors and peers) whilst writing 4 papers on various aspects of ESL and (most importantly) coming across as energetic, savvy and...
CELTA is the best - but be warned it is expensive and really hard! Literally the hardest thing I've done education wise.
However if your not sure about whether this is a career move yet then there's no need to do it just yet. There are many countries in Asia that will employ you with nothing...