There was a wonderful plan. Man was in charge and gave it all away for just a taste of disobedience.
Satan is the god of this world and bad things happen everyday, countless tragedies because of our ancestors disobedience. Jesus built a bridge between God and man so that man can not only have eternal life after death, but, live an abundant life here and now. Life is hard and if you hold to Gods unchanging hand, you will better understand what is going on if you stay faithful. I know it's hard, we lost our youngest son to heart failure and now, 15 years later we see things more clearly and the good that happens when you learn to praise Him in the Storm!
Remember what Paul said to the Hebrews
Heb 10:35 Therefore do not throw away your confidence, which has a great reward.
Heb 10:36 For you have need of endurance, so that when you have done the will of God you may receive what is promised.
Heb 10:37 For, "Yet a little while, and the coming one will come and will not delay;
Heb 10:38 but my righteous one shall live by faith, and if he shrinks back, my soul has no pleasure in him."
Heb 10:39 But (((we are not))) of those who shrink back and are destroyed, but of those who (((have faith))) and preserve their souls.
I am very sorry for your pain, fight the fight, hold on to what you have, He is holding on to you and you can never be plucked from His hand.