I hope you appreciate constructive criticism
It’s great you are willing to make videos to help the newbies. I rather prefer to lurk in the shadows myself. But my advice is solid!
The video was unfocused and contained too much rambling. Decide the points you wish to make, then write a rough script of those key points you wish to make. Improv is for comedy only. You spent 11 minutes on what could be summarized in a few sentences.
Unlocking new vs leveling and how high unlocked kingdoms for maximum loot that you collect every hour, the best method is not an opinion, it’s a mathematical formula.
The wisdom of leveling a kingdom to 10 for the skill bonus is questionable. Certainly magic before anything else as you suggested. Kingdoms to lv 9 is a viable strategy to maximize pvp gold.
1 star and 3 star kingdoms is key, but there is a method to maximize that based on unlocked troops. Levels 4,9,14 are key soul effeciency points. There is also an efficiency on traiting, but it all depends on troops unlocked for a kingdom.