I did similarly (once though, not every year) and dreaded its arrival - I remembered enough to know some misses/failures - it arrived and I instantly archived it, without reading more than I couldn't help but catch a glimpse of.

I would say don't do it young and naïve, it's just depressing, except that I am now at least mature enough to realise one's probably always too young and naïve to write like that to the older self. What we really want is to hear from them isn't it, but writing's no substitute at all.