I agree with everything above - Great response!I'm not a professional trainer; but I do have a genetically fearful dog...so these are just some tips I learned the long hard way that apply to my dog.
If she isn't into it; training or whatever the activity...quit and come back another day to try it.
If she freezes, don't force her; try to change the setting and offer an activity she'll enjoy; or just let her go and chill if that's what she needs to do.
Lower your expectations that way you can keep it fun; I have been very guilty of high expectations because I know the intelligence and ability is there, and then getting frustrated because the fear interferes...and Veronica would pick up on my frustration even if I tried to hide it...and it just made things worse.
Accept that you have a dog with fear issues (assuming you do, and it kinda sounds like you do) and that in some respects you have a 'special needs" dog and that your dog may never be able to do certain things...but hey, not everyone can do everything...so don't sweat it...give up preconceived notions.
Banish any perfectionist tendencies (of which I have many) and celebrate (genuinely) the little things; celebrate effort and enthusiasm most of all...quite frankly even if performance kinda stinks.
Reframe your thought process to include accepting that you have a dog with fear issues and stop wishing that you had a "normal" dog and love the dog you have (as I said just sharing personal emotions that I have experienced and sorted through; not saying any of this applies to you).