Those are good tools being mentioned - I love how LittleNavMap interfaces with the sim. There are add-on scenes for it that add sectional charts, Google Maps overlays, even IFR charts. It’s basically the functionality of ForeFlight, but for the sim.
Not to shameless self-promo, but you seem genuinely interested in learning… I stream twice weekly and just about every Friday night we go through a lot of this stuff, talking through the flight planning process and my thought processes regarding the various aeronautical decisions. Then we go fly the route using VATSIM and trying to follow RW procedures as best we can.
Sometimes we focus on one aspect more than others (due to time limitations), sometimes we do simple VFR, sometimes it’s IFR work in high-performance aircraft. But if it’s less than obvious, it’s about the process. I love the process. Lots of folks from enthusiasts to RW pilots fly along or chat, and we’re all constantly learning and applying RW topics to our love for the sim. Info in profile if you’re interested.
Anyway you cut it, find someone who will interact with you, to whom you can ask questions - it needs to be more than watching a one-way video or in-sim “tutorial.”