Theese are NOT viking runes. They are an older Rune alphabet, from around year 500 and earlier. They are called the elder futhark. The viking Rune alphabets have usually only 16 runes and there are several different alphabets from that time.
"Spegilmynd" - Mirrors the negative impulses sent against yourself, and reflects them to the sender. The sigil will work advantageous on a amulet , deposited in a black bowl with water on a black mirror, or in a bucket of water, and then put by your bed.