Do college admissions thoroughly check your Facebook page?

[broadfruit832]

I applied to grad school for an MSW and I'm afraid that admissions might see my Facebook posts. I have years worth of angry posts and I don't want to have to literally go through every post and delete them, though I also have years worth of happy and fun posts of me with my family and friends doing adventure things. I've posted pictures of food from various cultures, but also alcoholic drinks. My Facebook page pretty much has a balance of the highs and lows of my life. That's just how I am. I share my experiences and my thoughts.

Also, if my name is googled, there is ONE picture of me holding a drink, smiling at the camera, and I'm wearing a tiara indicating it's my 21st birthday. It's not even a trashy picture, just my face, the tiara on my head, and I'm holding up the drink. Other than that, all of my Facebook posts are private. Only my friends can see them, though I've heard there are loopholes. Will college admissions find ways to see the non-public information on my Facebook page? I don't want to delete my Facebook because I'll lose all the pictures and I have to re-add all my friends and family. Is it necessary to literally go through all of my Facebook posts to since i got it to make sure i don't have anything that could reflect bad character or am I ok as long as my page is private? Will that one picture make or break my chances of getting accepted to grad school? I'm freaking out a little bit.

This is a serious question and I really don't want criticism and people telling me "Well you should have been more careful." I already know those things. I just want to know what I can do to redeem myself if it doesn't matter that my page is private. Thank you.