score:3
"Thinking a lot about God" does not get one into heaven. Evidence: John 3:16 says to believe in God's son is the condition for eternal life. Ephesians 2:8-9 says that faith, not works (which would include "thinking"), is the means through which one is saved. Heaven: no.
Two bible passages can answer the question of whether "a lot" of devotion to the Lord earns one a special place, any merits with God. In Matthew 20:1-16, the vineyard workers who showed up at the last hour get same wages as those who worked all day. In Luke 15:11-32, the older son (who was a good boy all his life) is rebuked for his anger at the Father's love for the prodigal son.