Are you on HFS+ or APFS for your system drive?
How many user accounts are on the machine?
Only one user. Looks like HFS+
[doublepost=1547750230][/doublepost]
Definitely something wrong there. Run the command
@tsialex gave you there to drill down more.
Looks like the containers is the problem. Is there a fix?
1 /Users/madDash/Library/Receipts
24 /Users/madDash/Library/Application Support
0 /Users/madDash/Library/Maps
1 /Users/madDash/Library/Assistant
0 /Users/madDash/Library/Filters
0 /Users/madDash/Library/Autosave Information
1 /Users/madDash/Library/Saved Application State
1 /Users/madDash/Library/IdentityServices
1 /Users/madDash/Library/WebKit
1 /Users/madDash/Library/Address Book Plug-Ins
1 /Users/madDash/Library/Calendars
1 /Users/madDash/Library/Preferences
1 /Users/madDash/Library/Messages
0 /Users/madDash/Library/DES
1 /Users/madDash/Library/Keychains
0 /Users/madDash/Library/Sharing
0 /Users/madDash/Library/ColorPickers
1 /Users/madDash/Library/ColorSync
0 /Users/madDash/Library/Mobile Documents.94528286
1 /Users/madDash/Library/Application Scripts
0 /Users/madDash/Library/Assistants
1 /Users/madDash/Library/Roblox
30 /Users/madDash/Library/Mail
0 /Users/madDash/Library/Compositions
1 /Users/madDash/Library/GameKit
1 /Users/madDash/Library/Google
1 /Users/madDash/Library/LanguageModeling
0 /Users/madDash/Library/Favorites
1 /Users/madDash/Library/Passes
0 /Users/madDash/Library/Family
1 /Users/madDash/Library/iTunes
0 /Users/madDash/Library/iMovie
1 /Users/madDash/Library/CoreData
0 /Users/madDash/Library/ScriptingAdditions
1 /Users/madDash/Library/FontCollections
0 /Users/madDash/Library/Sounds
1 /Users/madDash/Library/TextWrangler
1 /Users/madDash/Library/Personas
1 /Users/madDash/Library/com.apple.internal.ck
1 /Users/madDash/Library/Printers
1 /Users/madDash/Library/SyncedPreferences
0 /Users/madDash/Library/Audio
0 /Users/madDash/Library/Keyboard Layouts
3 /Users/madDash/Library/Logs
1 /Users/madDash/Library/PhotoshopCrashes
1 /Users/madDash/Library/Internet Plug-Ins
0 /Users/madDash/Library/Voices
1 /Users/madDash/Library/Accounts
1 /Users/madDash/Library/Safari
1 /Users/madDash/Library/Colors
0 /Users/madDash/Library/PreferencePanes
1 /Users/madDash/Library/FileProvider
1 /Users/madDash/Library/Dropbox
1 /Users/madDash/Library/Mobile Documents
1 /Users/madDash/Library/PubSub
1 /Users/madDash/Library/Suggestions
1 /Users/madDash/Library/LaunchAgents
2 /Users/madDash/Library/Group Containers
1 /Users/madDash/Library/Dictionaries
190 /Users/madDash/Library/Containers
0 /Users/madDash/Library/Fonts Disabled
1 /Users/madDash/Library/Fonts
1 /Users/madDash/Library/KeyboardServices
1 /Users/madDash/Library/Metadata
0 /Users/madDash/Library/Screen Savers
0 /Users/madDash/Library/CallServices
1 /Users/madDash/Library/Spelling
0 /Users/madDash/Library/SafariSafeBrowsing
0 /Users/madDash/Library/Input Methods
1 /Users/madDash/Library/Cookies
0 /Users/madDash/Library/Services
1 /Users/madDash/Library/Keyboard
1 /Users/madDash/Library/CoreFollowUp
3 /Users/madDash/Library/Caches
250 /Users/madDash/Library
250 total