I cannot get permission to move any files or access drives

[lew1950]

I have tried everything to recover from an upgrade to bionic beaver. It has changed my permissions to root and I cannot change that back I have all my work and music saved on here. I have tried chmod but it ignores it I also in the past used Krusader in the sudo it would change files easily none of these work anymore and I have a book on here that I need to save.
desperate!!

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.12
ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CasperVersion: 1.394
Date: Wed Jul 17 22:56:23 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)