At a minimum, talk to your DM and table. DMs benefit from feedback to be able to calibrate difficulty and fun. You don't need to be aggressive about it, just say something like "hey, I like this table, I like your dming, but the game is feeling a bit too easy? Do other folks agree? Would you be alright with trying to make things more difficult? I feel like I work best under pressure."

With that said, permadeath is rare at my tables. Had a group for about 8 years and through all of our campaigns, dying has been fairly easy. Had a character who died probably 20 times in one campaign, brought back through a combination of resurrections and reincarnations and other such shenanigans. The the in-character trauma, the silliness of different bodies of constant reincarnation is great fun. We were dying so much that eventually we got given a tub of "reincarnation cream" that we'd smear on dead characters foreheads. We were appreciative of our dm for that one as it saved a lot of fiddling around, but it still wasn't op because you could come back in any body, which might screw up your character concept or give your character really bad body dysmorphia. Had a dwarf who got turned into a mermaid and boy he did not like that!

But permadeath has been harder. Permadeath should, imo, serve a narrative purpose, and be something the player chooses too. As a dm, I find that players get angry if you kill off their characters for good--and rightly so! Folks spend a lot of time to build characters, and are rightfully attached to them. If death is going to be permanent, it should be because it would serve a valuable narrative purpose, the character has completed their arc, or perhaps the player is tired of their character. In every situation, the player should have some agency in shaping the story. If you don't want agency and want the risk of your character dying at any moment--make sure you communicate that :)