I have definitely made this mistake, especially when starting out learning how to put music together.
It’s probably inevitable at first? Especially whilst learning I think? But hearing what you want rather than what’s actually there has frequently happened to me. Going “ear-blind” was common, I would come back to a song and think “what the hell happened to my masterpiece?!!”
And I realised over time that this problem is way, way more than just a need for “re-setting your ears” and taking a break (although obviously that’s extremely important).
The “wishful hearing” problem seems very deeply ingrained, and maybe related to denial and fear about all sorts of things.
But the most helpful thing I found for this, is to make sure I ask myself constantly:
“Yes this is all very nice.., but are you REALLY happy with the sound??”
Meaning for me; does it move me in the way I want, sound how I like, is it polished how I prefer, clean or dirty as I want, balanced or unbalanced how I want, is it expressing ME? And, is it really finished? etc..
But I’m always careful not to ask this from the point of view of judgement, especially imagined judgement from others. I only consider it with reference to me and me alone; my feelings about it.
If it’s a composer challenge, I will think about the point of view of others, but only in a “matter of fact” kind of way, relating only to whether I have done the best I can to keep to rules or a brief etc. I might ask “would I be happy enough to submit this for revisions” or something like that. It’s a little hard for me to gauge, as I have never done that in a “paid-for” scenario.
Basically, I don’t start thinking about how it might be received by others until I know I have I done the best I can, and am I OK with the faults that are left.
And that’s hard, because you want it to sound great right now, today, and it might not!
I’m not sure how I improved myself here over time, but I think I took a decision to start caring so much about the things I am writing that I just can’t face lying to myself about how it sounds.
It also helps to remind myself that what I make can always be tweaked and improved. Most of us don’t have premium equipment and a group top-rated professionals standing next to us, and that’s fine.
Interestingly, it also made me way less concerned about constructive criticism. You’d think that doing your best would make you so proud that you’d be petrified of negative feedback. But if I’m happy I’ve done my best, then I think that the prospect of getting advice on making it even better becomes exciting rather than scary.
I guess you are “wishfully hearing” when you are NOT happy with the sound, but you subconsciously decide to tell yourself that you are. It’s self-deception basically.
And now someone is about to force you to look at that. So now you don’t want the constructive advice, you want to tell them to f*&* off because they are a philistine who doesn’t know about music! 