I thank you for sharing your story. I haven't received a confirmation from the Spirit that it is definitely true. But I have no problem just accepting your statements at face value. This minimum level of faith is all I would ask of anyone. But it appears that many aren't even willing to have even this level of faith.
Scary? Why? I've given blessings when I received confirmation upon completion that my words would be fulfilled. Other times I received no such confirmation. And worse, I've received confirmation that my words would NOT be fulfilled.
It is obvious they were my words. But the power is from God.
It is not scary for me any more. It was scary the first time and the few times after that. The giving of the priesthood blessing was not so scary, but seeking for and actually finding the gift of prophecy is. In that moment, when a righteous priesthood holder, acting in the name of Jesus Christ and under his authority is giving a blessing of healing the only tool that Satan uses (at least on me) is doubt. Not a doubt of the Gospel, a doubt of self a doubt about whether or not you are sharing your sentiments and wishes or truly acting in the name of God. It's the "What if it doesn't happen?" thought. That's what scared me.
I will not go into details here on this board, but one time I felt the need to promise a couple under my authority as a missionary that they would be baptized in one week, an ordinance they had waited 4 years for, but were unable to take due to certain circumstances. I knew what God wanted me to say, to promise them, and yet there was Satan putting doubt into my mind "What if you say this and it doesn't happen?"
I have since learned to cast out all doubt in the words I give in a blessing. I now seek the gift of prophecy before and during the blessing. No longer do I use the words "if it be the Lord's will." Why? Because I know the Lord's will before and during the blessing. His will becomes my will and there is great power in a definitive declaration.
Why do we not see miracles more often? I feel that we, as a priesthood, generally have a form of godliness but deny the power thereof. Do we know what we really have?