Is there a way to check if my home folder is encrypted? I believe I checked this option during the installation, but now I'm not sure.
Since you didn't specify the distro, I will describe the method for Ubuntu (and maybe its derivatives)
Try looking for folders $HOME/.Private and $HOME/.ecryptfs. Any one or both should be present.
ls -A /home this should give an output mentioning either one or both the two folders.
Source: EncryptedHome - Ubuntu Help Wiki