Sadhu!
Practicing metta is a bliss. Dont forget to syart always with: may I ... otherwise one would simply increase attachments and tanha. One would not be aware of what is going on inside but simple builds a wall around, a wall of horny roses.
Dont forget the best way of metta practice. Sharing the merits of you good deeds and let those who are able take part an rejoice. That is a way, long long timt till today practiced, that gives reason and always stats by your self and has even an deed as startingpoint and sample.
So what does valued mirco think? Does a forwarding of missdeeds, an invitation to pleasur, pride and identification leads anybody to a good, deeds worthy to share?