Sounds to me like she is being extremely over-bearing and over-protective with something that she knows nothing about. Point this out to her. Tell her that you are safe and she has nothing to worry about. Let her know that her checking your messages makes you feel like she thinks you are stupid and unable to protect yourself. While you say this, work in the fact that it is hypocritical of her seeing as she can't even tell a legit email from spam and scam. Bring up the point that you are a senior(?) in high school and are about to be leaving for college(?) and that you are old enough to be able to handle yourself.Douk said:snip
If that doesn't work, let her know that her over-protectiveness is making you feel incompetent and unsure of yourself being able to live on your own.
Hope this helps.