Somebody knows the orginal of this fake font?

https://www.dafont.com/blissful-thinking.font

What made you say that it is a fake font? Do you have a basis for making such accusation?

I hope you will refrain from making that kind of accusation unless you have a basis for doing so. Perception is not an acceptable reason.

If you really want to know about it, you can get in touch with the author of the font and ask him what his inspiration was in making the font. The author contact info is found at https://www.dafont.com/profile.php?user=394556

It is indeed an originally-created font. Some inspiration for it came from the font Twentieth Century, however Blissful Thinking was made from scratch and is very different when you actually compare them.