We should never forget that God is omnipotent - nothing is impossible to Him. Thus there is never a situation in which you cannot be protected, never a time when He cannot help. That is not to say that you will not suffer injustice or be subjected to trials. God, in His respect for man's free-will must allow people to do all sorts of harm to each other, even the most evil acts. Also, as a child of God, you must develop your own free-will and strengthen your soul through these various trials, including bearing the injustices and hurt inflicted on you by your brothers and sisters here on Earth. Just as Christ demonstrated His forebearance of man's free-will on the cross, so must we each day of our lives try to do the same.
So if we must inevitably suffer on this Earth, then what role can God play? God can help you bear your sufferings, and God will use all evil acts to achieve good purposes. This ability of God demonstrates the powerlessness of evil against God's omni-potence and omniscience. We have the fall of the primordial spirits, then we have the creation of the physical universe as a redemptive institution. We have the fall of man, with Adam's disobedience, then we have the coming of Christ as a redemption for man and the creation of a new heaven for the Children of God raised among the tares and wheat of a world imbued with sin. And if one seeks to do only what is good then his sufferings will be fewer and his trust that God will help and guide can be placed with absolute confidence. Not only that, but the experience of God's promises coming true will only lead to an increase in faith in God and understanding of, and love for, Him.
Thus listen to God, pause in every action to seek His affirmation and will. Talk to God, ask Him what you should be doing, what is right. In such a way you will develop the habit of not relying on your own judgement, but on His. Not seeking your own limited opinion, but seeking instead His guidance from His infinite wisdom. And as such you can be confident that God will protect and guide you, and that all evil that befalls you will be turned by God into valuable spiritual gems, for each of which you will praise Him in His goodness and love for such blessings.
Even on this earth, heaven can be held in heart of one who places such trust in God and who loves Him and His ways, as no-where is there a heaven or hell than in the hearts of men.