Your intentions are good, but remember that we must not do what we want but what God wills. You can certainly pray everywhere and at all times, and Saint Paul exhorts us to give thanks in every circumstance, and thanksigiving is prayer. But it dose not take books or journals to prayer - rather, it takes only one thing: the will. Emotions do not play a part in prayer, but only the will dose, so even if you feel like you donāt want to pray, yet pray anyways, your prayer is true and good, and indeed, the emotional disliking of prayer, far from removing the value of prayer, actually increases it, because the emotion is a trial sent by God for your greater good. It is a grace, and you can offer it up to the Lord. It is always good to renew and strengthen your soul in the Fountain of Mercy which gushed forth from the Heart of Jesus, because we human beings, finite we are, get weary of prayer and thinking of God, but with Godās Mercy we can do all things, for God is goodness itself.
If you feel urged to write - like I do at times - offer up the feeling to God and ask Him to accomplish His Will in you, and if He wills it, youāll write at the appropriate time. If, however, the feeling passes and later you donāt feel like writing, than know that the feeling was not a divine inspiration but a trial, a cross, a share in the Cross, sent for your greater good. Give thanks, than, for God in His Mercy sent you the trial, and indeed, all of His works are crowned with Mercy. For God is love, mercy, justice, holiness - in a word, He is goodness.
I strongly suggest that you attach to all your prayers and offerings the intention of āfor the conversion of sinnersā, for by praying and sacrificing for the conversion of sinners we comfort Jesus, who is plunged into mortal (deadly, deathly) agony for every soul lost to the fires of hell, just as He was sorrowful unto death in the garden, and by praying for Mercy for sinners - by asking God to give to sinners the grace of conversion, which is a gift of His Mercy, as every grace is a gift of the Divine Mercy - we win many souls for Jesus: the dying, the enemies of Christ and of His Church, and we ourselves.