So for me it would be like:

21.    12.    1955  -  2018

2+1+ 1+2 +1+9+5+5 +2+0+1+8 =37 = 3+7=10 =Wheel of Fortune

.....and sadly, the Wheel in on it's way waaay down...... for now......

 

So mine would be 15/01/1999-2018

1+5+0+1+1+9+9+9+2+0+1+8= 19 The Moon

Moon rules the subconscious. Psychic powers are revealed; intuition is strong. As the moon waxes and wanes, beware of deception and shifting sands of superficial relationships. Also suggests that unusual, supernatural event may occur. With lunacy in the air.

 

Personally I’ve been using my abilities and intuition a lot already this year and Chris has already been warning me about deception.

So for me it would be like:

21.    12.    1955  -  2018

2+1+ 1+2 +1+9+5+5 +2+0+1+8 =37 = 3+7=10 =Wheel of Fortune

.....and sadly, the Wheel in on it's way waaay down...... for now......

 

If I use that method, The Lovers would be my card for 2018. Not bad. :P

If I use the method including my birth year I'm in a Lovers Year right now and at my birthday it becomes The Chariot. Interesting!

Lol I hope I don't seem like one of those litigants who go forum shopping to get a favorable ruling.

Using Audelia's method I get 10 Wheel of Fortune

Using Daniel's Method I get 19 The Sun

Using Mi-Shell's method I get 4 The Emperor

 

It will be interesting to see how my year goes ... I thinking it is going to be a Wheel of Fortune type year but here is hoping for The Sun!

My card starting last year was Death, this year when my birthday comes around in august it will be Temperance (I used the method described by the OP).

 

I'm hoping that when temperance kicks in it will be as relevant as death has been *fingers crossed*