I think the Dark Souls games have kinda earned an undue reputation for being unapproachably hard. They're really not all that tricky once you learn that death isn't a huge loss condition, just a step in the journey. I initially found them frustrating, but once I learned to not be bothered by dying and simply try again, I found an immense joy in exploring the worlds and challenges within.

Some bosses I beat first try, others will take me an afternoon or a few days to beat, but I have fun with it either way. Different strokes for different folks and all that, but I think Dark Souls and it's like are good lessons on how to get over feeling bad about "losing" and just enjoy the game.

Plus, you can always explore areas to gather up whatever you need to level up and slowly get marginally stronger as you become more familiar with your character and tweak it to your liking.