Earlier quoted context omitted.
I got sucked back into Celeste recently; as of last night, the only golden berries left for me are 5B-8B, Farewell, and the dashless winged berry for 1A. (I also haven't gotten the moon berry yet, I kind of forgot about it when I was polishing off the red berries earlier). At the same time, it's easy to believe that this is as far as I'll ever make it; part of what makes going for golden berries so addictive to me is…
Dashless 1A isn't as hard as you think - just go into options and remap the dash button and then take it one room at a time - you can die as much as you want, you just aren't allowed to dash. Watch a video if you get stuck. I was able to do it in one sitting.
I don't think I thought it would be hard, I just wasn't interested in learning precise spike tricks when I started going for golden berries. It was more interesting to see how the easy levels play out when you have to memorize and execute the whole thing at once.