How to change the texture of a cutom block model via the blockstates tab?

before this addition was made towards mcreator, i had a working block, that when right-clicked with blue ice, it would change to a "cold" variant. ive since switched to neoforge as it was a forge mod before, and decided using the built in blockstate editor would be easier and still work. and it did, for the most part! the procedure runs, the sound plays, all, but the texture of the actual block. the particles are different, ive even tried changing the block model, to which the correct texture showed, but obviously it wasnt the correct size. ive come to the assumption that it is the model's fault, but how can i fix this? i made the model in Blockbench, and my mod is Neoforge 1.21.8 2026.1. any help would be greatly appreciated, thanks!