Yes, Alan, science has far to go to explain everything, but as soon as you credit everything they have not yet discovered to an entity which itself is explainable, you are giving up on looking further.
Crediting 'God' answers nothing! It's the lazy way out! We don't know X, oh, Goddidit! We don't know Y, oh, Goddidit! If science took that road we would all be back in BC 32!
Take God out of the equation and you can wonder at how it all works, discover new medicines, new ways of communicating - Using the Internet, instead of putting your hands together and talking to yourself!
I know your religion means a lot to you and somewhere along the line you've been convinced by something or someone that this entity is real . It's scary to question it when you are so entwined in all the carrot and stick that Christianity has invented but, believe me, Alan, life is so much better when you're not bothered about spending eternity on a cloud or worrying that you might get thrown into a furnace.
It won't be long before I am literally thrown into a furnace but it holds no fears for me . and it need not for you.
I am not using science (or lack of it) to prove God's existence. My posts are aimed at opening up the possibility that God exists to those who try to deny this possibility.
My own faith is primarily based on personal experience of God in my life which is difficult to convey to non believers who do not know me, but these personal experiences will never allow the possibility of me dropping my faith in God. I can't stop believing in someone with whom I have a personal relationship.
To open up the possibility that God exists to unbelievers, Alan, you need more than assert you have a relationship with him. My young son had a relationship with a make-believe boy called Stewart Bennett and this make-believe kid did everything with him. It was a real relationship to him as I'm sure yours is with God - to you, but not with someone who has no belief in such an entity.
The Bible was written at a time when there was no logical explanation for natural disasters, such as the Flood, so it was fully understandable that the people of that time thought it was due to some magic force they called 'God' being angry with them and they needed to somehow appease him/her/it. The same thing happened during the Inca civilization when they made human sacrifices to appease their angry Gods - not that dissimilar to Christ's sacrifice when you think about it. Surely we have come to think a bit differently after 2000/3000 years?
You say you can't stop believing in someone who you have a personal relationship with and no one is asking you to. It is obviously a need you have and that's fine - but you must see that anyone who does not have such a relationship with God will not be convinced by you asserting that he exists, though as Nearly Sane rightly says, you can't even explain to us what form he takes or anything other than that 'He is'!
Just as you cannot stop believing in him, I can't start believing in him - in exactly the same way as I can't start believing in fairies or Santa Claus - can you?
If and when any of it starts to make sense, then perhaps I could think seriously about whether I believed in it. It is a bit late now though, methinks.