That's fine that it's your opinion. Just please don't contradict yourself and treat it as the truth.
On the other hand, I have the experience of knowing there is a designer behind items that exhibit plan and purpose in their functioning. I have learned there are bridge-designers behind bridges and even clothing designers behind clothing. So when I see the exquisite functioning exhibiting plan and purpose in nature, I find I can make the logical conclusion based on my personal experience that there is a Designer behind it all.
You, on the other hand, are stuck in the position of thinking that even your own thoughts may be so random that you cannot be sure you are thinking correctly. While this does allow you to change your mind as frequently as you like, it does make it hard to take you seriously when you proclaim something. You cannot be sure your logic is even logical. What is worse, you must suppress the truth that confronts you regarding art being the work of artists and such and deny that any of this would lead to the idea that there is a Creator in back of creation.
It must be sort of like sitting at the Mad Hatter's Tea Party!