Welcome to Fish Lore

I'm really sorry about your fish.
I don't know what bacterlife is, but if it's a bottled bacteria, I would suggest you stop using it. Most don't do what they claim to do. In fact they prolong the cycle by using the ammonia that the natural bacteria needs to develop.
So, while bottled bacteria is bringing down the ammonia, the beneficial bacteria that will self sustain your tank can't grow.
It would be a good idea to do 50% daily water changes or do 25% changes twice a day until your readings are 0 ammonia, 0
nitrite with some nitrates showing.
You can use Prime as your water conditioner, that'll detox the ammonia for 24hrs between water changes.
It'll take time and lots of patience, but you'll get there.
Good luck!
Oh, doing water changes is not taking out any good stuff, instead it replensihes the good minerals and brings down the bad stuff (ammonia, nitrites)