I need some concrete advice on how to handle all the situations
It is difficult to be concrete when you perceive the computer. But the faith teaches the Church that God wants our “all”. Concretely, this is heaven and you are not there yet, that by which is why we hope in what we see not, believe in what we do not see.
Ignorance, according to St. Theresa of Avila, a Doctor of the Church, is frequent element in spiritual trials. Hence, concretely you want to do spiritual reading of pure materials. The Bible, the Church Fathers, the Catechism, the Summa Theologica, books recommended by those who love the universal communion, the writings of the saints and there way, which is a compendium to the way of Christ.
St. Thomas Aquinas, a Doctor of the Church, said, “Happiness is the knowledge of God”. Knowledge of God is wisdom, practically by the judgment of divine things which we find in the pure materials, pure for they exemplify the divine and not the author, with the exception of the bible. This judgment of divine things always properly has its end in love, which is self-giving outside of the comfort zone.
In what context do we give? We need the gift of self-knowledge. The Gift of Knowledge, in part, one of the seven-fold gifts of the Holy Spirit, perfects the intellect to judge worldly things - to see there true worth as they pertain to the last end which is God. The Gift of Knowledge recognizes that the world is strange in comparison to lasting happiness. And to delight in what the world holds as delightful is to be strange and sorrowful - if God gives the light to see the distance as a result of the delight. Guilt is found with knowledge. And the Gift of Counsel judges our own actions, and in the case of guilt, it is deal with in frequent confession of sins to a priest by the way of the Lord in communion with his Church as instructed by the Papal magisterium.
The effect of mental prayer is devotion to God from our heart, that by which is his knowledge of himself as gift to us. This is not solely a individual application, it is a way that consists in communion with his Church led by the bishops in union with the Pope. Jesus is the way, the truth, and the life, thereby we are led to such communion by devotion - which is caused by mental prayer. (See “The Ways of Mental Prayer” by Dom Vitalis Lehodey - lauded by Pope Pius X)
Mental prayer is the link on how we judge the world vis-à-vis with the light of who we are.
