Do you have the virus of doubt? Maybe you doubt that God has really forgiven your sins or that the Bible is really the Word of God. Do you question why God lets people suffer? Maybe you prayers aren't being answered and you doubt that God really cares.
You have plenty of evidence that God is real, that the Bible is true, and that God cares about you.
Because we are finite people with finite minds, we can't understand everything about an infinite God. Our questions don't always have complete answers. As we mature in our faith over the years, perhaps God will show us answers or we may have to wait until we get to heaven.
1 Corinthians 13:12 For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.
If we had all the answers, there would be no room for faith.