How could a good God create a world like this one is now? The fact is, He didn’t create it like this. Not this kind of sin-cursed world we see. At the conclusion of God's six days of creating and making things here, He placed it all under man's dominion and then pronounced it all to be "very good" cuz it actually was. See Genesis 1:26, 28, 31.
There was, therefore, nothing bad in that created world, no hunger, no struggle for existence, no suffering, and certainly no death of animal or human life anywhere in God's perfect creation (plant "life," created as food for men and animals, does not "die" in the Biblical sense). There was no carnivorous activity at that time, for God had said: "And to every beast of the earth, and to every fowl of the air, and to every thing that creepeth upon the earth, wherein there is life, I have given every green herb for meat, and it was so" Gen. 1:30
When we don't get it.. when we run into things we don't understand, let's keep studying and just fall back on what we do know for sure. God is good, he is powerful, will win. He loves you and has a good plan. Sometimes I just put what I don't really get into a folder of my brain that is entitled Prayerfully crack the Bible again and wait for further information.
“Trust in the Lord with all your heart and lean not on your own understanding..” Prov. 3.5