I need some help

[Ame-Chan]

Hi! its me ayano, y'know, the tiny gremlin who dwells in the roleplay section.
well
i got a new pc
and i actually have no idea how to transfer my savefiles
i can download feral heart maps and sims 4 mods thats about it
im so lost and scared ill lose
77 hours of cattails
55 hours of slime rancher
my meager 7 hours of stardew valley
and my impressive hours 196 of terraria 
i know nothing about files and crap if not id be pumping out desktop wanderers and mods 24/7
so i really need help
sorry abt my grammar i am in a hecking rush

[Aaiknn]

Usually steam should have saved your progress, but if you play offline a lot, go to your old computer and Local Disk>Users>YourUsername>AppData(hidden)>Local>Cattails That’s the location of your saves, or just search Cattails in the search bar.
After that, send your files from the old computer to the new computer, be it USB or email. Paste them into the exact place as where there were found except on new pc.

[Ame-Chan]

oh! im never offline!