>>640949
When you're entirely untrained but want to run a marathon, it's a bad idea to start off with 20km runs in under 150 minutes.
Spiritual exercises of St. Loyola is a great great piece of advice - but it's fairly advanced and it's a "program" (so to speak) for weeks. What you need is something "handy" and making that a habit - every single day.
The thing that comes to mind is the Rosary. It is our best weapon against evil and our greatest tool to convert people, including ourselves. It has everything: Pater Noster, which is THE prayer authored by God, the angelic salutation (Hail Mary), which again are words granted by God, the minor doxology and the sign of the Cross, which is us humans paying tribute to the Holy Trinity and directing our intentions. If you want you can add more prayers like the Fatima prayer (keep in mind that this is not part of the taught Rosary, because it's a prayer of divine revelation - but it's obviously a good thing)
>Oh my Jesus, forgive us our sins. Save us from the fires of hell. And lead all souls into Heaven, especially those most in need of Thy mercy
the Hail Holy Queen (in the end)
>Hail Holy Queen, Mother of Mercy, our life, our sweetness and our hope. To thee do we cry - poor banished children of Eve - to thee do we send up our sighs, mourning and weeping in this valley of tears. Turn then, most gracious advocate, thine eyes of mercy towards us, and after this exile, show us the blessed fruit of thy womb, Jesus - oh loving, oh clement, oh sweet Virgin Mary. Pray for us, so that we may be worthy of the promises of Christ.
It is important to make it a habit to pray daily. Try to think of something like a "prayer day rule". Mine for example: Wake up, make the sign of the Cross, thank for the new day and dedicate it to God. Then prayer when you eat (before and after you do eat). Usually I do at least a minor Rosary (5 decades) a day - in the order that is taught by the Church - and I do the Compline in the evening.
For resources:
Keep reading St. Loyola - even for the "plebs" he has some great advice. Other things you might want to read is "Introduction to the Devout Life" by St. Francis de Sales, "Imitatione de Christi" by Thomas de Kempis, the monastery rule by St. Benedict (even though at times it's really expressing harsh things - because it's for monastic life (which is bloodless martyrdom so to speak) - it has some good advice in it. And obviously the Bible [especially the NT].
For things Rosary you want to read St. Louis de Montfort -> "The Secret of the Rosary" (link here Louis-Marie Grignion de Montfort but avoid most of this page beside the book, it seems borderline sede). That is already enough - and in case you don't know how to do it: http://www.rosary-center.org/howto.htm
That is already A LOT to go through. As I said, the Rosary is your weapon of choice. Make it a habit to pray it and everything else will follow from that. I'd also advice you to immediately also read along in the book of St. Louis (which I mentioned above) for clarification and also motivation. Don't do all things at once. Read 1-2 books + the bible at the same time at max, otherwise you'll just lose track or get overwhelmed. Also make your prayer day/habit something you can start off with rather than ramming 3 hours into your day - that is probably bound to not succeed.
All the best, God bless