well, i experienced that myself b4 and i dun mind sharing - its
actually love n care around me that i see and feel, pulled me
back....my family, my gf. and most importantly, God really show me
on tt special particular day.
no long essay. 
i agree control of mind doesn't happen overnight. but there are
some notes to take in exercising it. some nt consicous when their
thots run wild, others are. first to make effort to remind
yourself...When becoming more conscious of it. it might be very
hard not to think otherwise...but slow and steady is important.
breathing helps. find out why - because of environment, ppl aro
you, or just yourself?