We see lip-synced, pitch corrected, Frankenstein-ed covers all the time. Can you know how many takes they did for that specific vocal line? In what seems to be an Instagramed version of the reality of singing, you might be holding yourself to unrealistic expectations and standards.
We might assume if they got the money-shot once, then they can always get it. Who knows? Yes, even the best singers have off days. But I'm pointing at the fact that a heavily lip-synced or edited cover means they couldn't even get through it once. That's it. It is multiple performances or attempts put into one.
How stressful does that sound? You might feel falsetto is a little goofy in the beginning but you're building a solid foundation that will never let you down. You will be able to do stuff live they can't even do in 30 takes. Keep at it.
