New Player

Hello. After seeing all the hype about "Silksong" and my friends constantly urging me to play the game, I finally did. And I agree with them! Hollow Knight is AMAZING! There was just too much exploration. You progressed? Nope. Go back, fight the Gruz mother and unlock Sly and Salbura, grind for charms, explore the crossroads, fight Brooding Mawlek, and then more grinding, that is just in the forgotten crossroads! Greenpath, Fungal Wastes, and more always satisfied me with the amount of exploration! I am having one trouble though. The Mantis Lords. These guys geniunely suck. I beat Brooding Mawlek before these guys. My loadout is Quick Focus and Soul Catcher. Can I get any upgrades, or more soul notches or anything? If so, please tell me. Welcome me into this community, I feel like I'm starting to have fun without any spoilers!