Don't do it! You did a great thing by saving for your child's education. That's really smart of you. Look at that saving as an investment in your son's future. Just don't risk that for anything.
There are no guarantees in life, not with steem .. or with anything else for that matter.
If you are keen on holding some steem, try to invest a little each month. If you can't, spend time on Steemit, post regularly and earn that steem.