why do i feel like crying ?

It's 11pm plus alrd, and i just got home. yes i know it's late, but i have been reaching home this late ever since i started work. & it will continue to be this way till i quit. mom is overseas now, so it's just me & dad. i leave home at 9am, reach home at 11 plus. By the time i reach home, my dad's alrd asleep, so we hardly get to talk anymore. Adding on to it, so many of my close friends are overseas, while most of the others are working, so we all hardly contact nowadays. i have never felt this lonely before ):