God is really awesome. It's just that you don't know Him because your sins separate you from God who is holy, righteous, and just. You owe God a huge debt for your porn watching, masturbating, cursing, blasphemy, unthankfulness, thefts, lying, fornications or whatever sins you've committed. But God paid your debt in full on the cross because He is merciful. It's your choice to believe and receive the payment for your debt so God can pardon you and the separation between you and God can be obliterated.
By the way, Abraham's sacrifice attempt of his son was a foreshadow to the ultimate sacrifice of the Lord Jesus Christ dying on the cross (but was resurrected 3 days later). The Bible has many foreshadows of the cross.