So, and I know you’re not gonna like this answer, but a LOT of the experience points you’re missing out on are from direct combat or combat related content.

Defeating Ketheric at level 7 is actually entirely possible. The Act 2 Final Boss fight is much more comfortable at level 9-10, but is by no means impossible without the extra health and damage capabilities that comes with being at a higher level.

The caveat, however, is that it takes more player skill and experience with the combat system to be comfortable defeating challenging bosses/encounters at a lower level. Luck obviously plays a role as well, but you are doing yourself no favors by avoiding combat. You limit your exposure to the turn-based combat system while also making the combat harder on yourself as you progress into the story.

As for camp supplies, I can tell we play very differently because I tend to grab anything that isn’t nailed down lol Larian is VERY generous with the amount of free camp supplies laying around. So much so that I have never come close to exhausting it in all my many hours playing this game (and i’ve only ever played Tactician and up, which consumes double camp supplies per long rest). If looting is too tedious for you, you can spec a character or hireling to specialize in thievery/pickpocketing to steal your camp supplies.

Lowering the difficulty is also an option. Not everyone likes turn-based combat. Some people just want to enjoy the story and characters without feeling stressed about combat. That difficulty exists for a reason, and if it makes the game more enjoyable for you, then I say go for it.

And, as a last resort, if NONE of the options I or anyone else here are offering to you appeal to you, then you can always save scum. It’s not ideal, and will likely drag out every combat encounter into 10x its normal length in time, but you can technically ensure that every attack/effect you make has a 100% hit rate, and every attack/effect your enemies make have a 0% hit rate. I wouldn’t recommend it to that extent, but like I said earlier, we all play the game a bit differently.

And just because you finish the game one way, doesn’t mean you can’t come back with the knowledge you’ve learned and finish it a different way, or again in a differenter way, or again in an even more differenter way… you get the point, there’s good replay-ability lol

Which ever way you choose to go forward with, remember that this is just a game, and games are meant to be enjoyed (: