You say that but I bet he's not as much of a self-insert as you say. One of the defining features of a TTRPG character is that they are willing to go on dangerous, even life threatening adventures. These adventures almost never make sense to go on, they are extremely high risk for not a lot of reward. You say your character is a self insert, but also that he has literally died to save someone else. Have you personally literally given your life to save someone else?

I would suggest to you that any rational person, after being nearly killed doing a thing, would stop doing that thing. Your character has literally been killed while adventuring, yet is still an adventurer. That's more than selfless, that's suicidal. I'm guessing you personally don't have as much of a death wish as your character, so maybe think about why he chooses to keep adventuring, knowing it will probably be the thing that kills him. What does he stand to gain? If he wanted to just do good deeds, why doesn't he go get some other job where he can provide his abilities as a service in a city? Why adventuring?