I wanna load up a different collection because it contains a deck that I wanna use in my current collection and I was wondering if my progess on my cards is gonna be the same after I loaded up the other collection and then switch back after I exported the deck. I really dont wanna lose my progress on those cards.
If you mean importing a collection package (.colpkg file), then your current collection will be replaced by the package.
You can instead switch to another profile and load the collection there, then export the deck as a deck package (.apkg) and load it into your main profile.
See the relevant manual pages on profiles and exporting: