It sounds like you’re using an ontological argument for god’s existence but I would dispute your final assertion, that you speak from logic.
The existence of a God, deist or theist, is an extraordinary claim. It therefore requires extraordinary evidence. There is none. Therefore, logically, your position must be agnosticism. It is not possible to simply arrive at a belief in God using pure philosophy or logic. It can only be done by beginning from a position of belief and then seeking to justify that belief.
Furthermore, you use God with a capital G, suggesting that it is the Abrahamic God in which you believe. Why? Even if I grant you your logical and philosophical path, which I do not, it does not and cannot lead you to any specific god, only to a possibility that some form of deity might exist. That leaves all the hard work yet to be done.
"I think religions are always created by devil or Satan and never by God. God don’t create religions or do anything which cannot be objectively knowable".
Two questions here.
Why do you believe in the Devil? How can your logic or philosophy take you to such belief?
How can you possibly know what God does or does not do?
"I believe in miracles, mysterious occurrences and supernaturals. I don’t think everything can be understood through physics".
Whitefire13 has already answered you very well but i would like to add something.
You say that you believe in miracles. Belief, of course, is not the same as knowledge, but leaving that aside.
‘A miracle is an event not explicable by natural or scientific laws’ (I have used the Wikipedia definition for ease but feel free to offer a better one). That being so, when you hear of a miracle that seems to support your religious beliefs, you should ask yourself a simple question. Which is more likely in the face of what we know about the world, that the laws of nature and science have been suspended, in your favour, or that there has been a mistake or a deliberate attempt to lie?
And what of reports of miracles from other faiths? There is a Hindu guru alive today who claims to be able to fly and thousands of his followers attest that it is true. He utterly denies your God, so do you believe in him too?
In reality, you are simply trying to wrap up your belief in God in what you think are clever sounding words. I’m afraid you have yet to convince me.