I'm in my late 20's and have been SI'ing for 18 years. I feel the same way you do about it being childish especially since SI now, is mostly associated with teens. I'm embarrassed that anyone will find out and think that I'm too stupid to figure out how to deal with things in a healthy, adult way. For me, it's not that I don't want to stop, it's more like I'm too scared to stop.
yes,i do believe there are a lot of adult SI'ers here.
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