>>799673
>What was the moment that made you sure that God is definitely up there?
When His actions manifested in physical reality, even before I was a believer and before I noticed, what was going on.
The Creator is real, not some thought construct. He is not just "up there", He is right here, He loves you, He wants a dialog with you. And He has a plan for you. And the Lord acts, even when you run away from Him.
>Personally, I find myself as an agnostic
Just like me in my past
>inclined to believing in God
So He is already doing His work.
>I don't believe this Universe appeared randomly, and this is why I find more plausible that there was an outer, intelligent force
You should dig into Genesis (First Book of Moses) in the Bible with an open mind. It started my journey to Christ, I'm sure it can start yours as well.
After being in terms with the creation, go to the New Testament and the Good News. God will provide you with the means of understanding what Jesus Christ did for us, once your mind is open.
Many missionaries usually avoid the OT and start with the Messias, but the beginning of everything is very important for a strong faith.