Its the vicious cycle. AGAIN!

Im back in that cycle. I did it before and got out of it before and swore i would never do it again, but yesterday, it started up again. Purging, i meen. So i struggled for a little while about a year ago, maybe not quite a year, maybe a couple months, but anyhow, i've started again and its hard for me to control. I have only done it twice since this recent episode (yesterday and today as well as SH) but it will start the vicious cycle again, of eat dinner/a meal, and purge it. I dont even binge, i just purge what i ate. My parents dont know and i dont want they too. What am i going to do!?