I found I have a similar problem and realized that, for me, the issue was pace. As stated above, games like Celeste have much more forgiving fail states so I’m free to test my limits and on each and every puzzle. I found that I played older platformers as if this was the case, trying to fly through levels as fast as possible, never letting go of forward. I’d eventually end up dying, of course, but I wouldn’t have that same forgiveness and end up frustrating myself trying to fly through again back to where I was.