I used to think – „Hmm, people who play blind chess (without looking at the pieces) are some great chess players!”.
In time, I discovered that, while for certain a player playing blind chess knows some things, the ability to play blind is a consequence of a high-level play, not a target.
So, first, you’ll need to learn how to play at a high level, and then you’ll be able to play blind chess.
If you put it as a target – „I must play blind”, you might learn, but with little success.