I know this has been along time. This is my first day on here. The only thing I can say is that God's ways are not our ways, as it says in the scripture. God's rules are not our rules either, he does not use or need gravity, he made the rules for us. We cannot demand that he follow the rules the he gave to us.
It is impossible for a human to understand the almighty God. Sometimes, people don't think it is fair that God does what he will, as if we should be equal to him! God loves us, we are His creation, and to him, this pinpoint of human existence is not all there is. I don't understand how long eternity is compared to the few years we get here, but He is working things for the good for those who love him. It may not feel like it, like loved ones dying before when we think they should, but it is part of God's giant quilt.
I do not know how things are going in your life, but I do know that all of us must turn to Him for our comfort. Lost people do not have the Holy Spirit to help them. We do. Ask the Father to send the Comforter to help you. We have a choice, to live a bitter life towards the One that knows the future and loves us, or we can trust Him. I find myself saying, "OK, God, if that's what you are going to do, I will trust you because I know you love me. I don't know what good came come of this, or how I will even be able to live after it, but I will trust you." Many times, I have been devastated about something that was going to happen. Sometimes it did, sometimes it didn't. Either way, I found that trusting God to manage his creation took a lot of burden off of me. He cares from the sparrow, why not me? Of course, he cares for me and for you.
It's not unusual for someone to get mad at God. It's all through the Bible. Most of the time, they told God they were mad at him, but you must keep your faith, He will show you and even if he doesn't, you will know in eternity.
God bless you and I am praying that you will find comfort and increase your faith.