sorry to hear that, steelgirl.
trying in tcr-mode isn't a bad idea. I find my Ti-wire to vape "better" with TCR than with Ti.
However you should set the proper, lower TCR for your wire or else the temperature you set will be way off (higher than set).
The TCR for your wire should be somewhere around 87-90 according to
steamengine.
Try to fiddle with that using the method 2legsshrt described above.
Good luck
PS: Running into Protection eventually while still having a good vape is not a bad thing.
Running into protection while NOT vaping but just looking at the mod is normal. You're generating airflow while vaping that cools the coil which is missing by just looking at it.
However, it should give you a satisfying vape before protecting you (from burnt cotton). Don't be shy to up that temp; if you say at the stock-120 TCR the vape is fine, your temp is probably 25-35% higher (hotter) than what you set it to. (this is just a roughly guessed number, the wire-tcr-buffs here may correct me

)