You can chat with your DM. Try to understand where there errors and where there are choices. The Slow Healing Rule to me is a good rule for hexcrawl (better than Gritty), the lingering injury I would use when a player goes to 0 HP (to avoid the classic "don't use healing until is almost death).
I'm recentely started playing a BECMI campain, and the master give use XP for coins, as per rules. For the first non magical treasue, worth 700 GP, he told us that wasn't XP. I think it was strange. After the session, I borrowed the manual, and found the part about XP for trasures, and explained that if we would get no XP for treasures, we will always be under levelled for the next dungeons (we are playing B2). He understood, now waiting for the summer break to pass to try my new almigthy all powerful unstoppable level 2 thief, now with +5% of probabilties XD.
tldr; Talk with her. This is a game, should be fun for anyone.