New sd card huge issues help plz

I'm a newbie to this stuff so bear with me

I bought a new sd card. Inserted it today and found out that it wasn't appearing in any of my file managers and so I couldn't move my media to the sd card. I started exploring and in the settings I found an option which was something like "move files to sd card and free up 6.8 gb" so I did it.

After it was done , sd card was still not appearing in my file managers. In the phone settings when I click on sd card storage it says that 6.8 gb of APPLICATION data is in my sd card , but it doesn't show any of the apps in it. Also , my phone has gotten much slower , and a lot of my apps aren't working , and my YouTube isn't loading since doing that (I use yt Vanced).

Worst part of it is I don't know what kind of data is occupying my sd card , and I don't even know how to move it back to my internal storage. Phone settings says it's application data , gallery says it's media it's one big mess.

Plz help me I really need this problem fixed and I don't want to factory reset my phone

 

Thanks for replying
Card was formatted for phone storage , and i connected my phone to pc and laptop and i could access the sd card but for some reason I couldn't access my phone internal storage on pc and laptop so I couldn't transfer it back. Android files , dcim , images etc were present in the sd card

 

Yes I did that and it seems like that was my mistake. I also clicked the "migrate data" option after that. Now how do I fix it