Rent or buy?

This is one of my struggles lately, and despite knowing that I need to rent where i want to live, and buy where i want to rent, I am still trying to convince myself about this true fact. I am still dreaming to build a house as i would like, projected and furnished by me, for me. I am in the middle of both sides, like Aesop's donkey, missing them both, but still feeling guilty if i would chose one of the two options.

What to do? What to do?