The following that you mentioned:
Christian doctrines like - Quiet Time - Going to Church - Reading the
Bible and even Praying
These are not doctrines at all. Those are rituals that Christians do.
The doctrines are the reasoning behind those and faith is the motivation behind those.
So doing the rituals without understanding the reasons and without being properly motivated, is truly meaningless.
All the Christian doctrines are revealed to us in the Scriptures (the Holy Bible) but that's not all, the other key is our submission to God which can only be inspired and empowered by The Holy Spirit within us believers.
Do not believe for a second that without The Holy Spirit's help we will be able to gain the knowledge and understanding of the Scriptures, or be able to muster the motivation drawing from our own strength. These two diseases are the recipe for anemic "Christians" who speaks the lingo but runs on empty tank today.
Therefore the first step to secure the growth is to 1) Feed on the Scriptures as though you are eating your food, that is regularly and then 2) Wait for The Holy Spirit to "digest" the Scriptures for you, orient your mind towards Lord Jesus, and nourish your heart (read 1 Corinthians 3:6-7 to see where this is coming from).
Your prayer for now should contain one and only one focus: "Father, please draw me near and grow me" and He who is faithful will be faithful also in adding to you the reasoning and the motivation to do the right things for your growth including finding the right Christian group or church to belong to. This is the only way, and the best way to grow.
Hope this helps. Excellent question!