How can I disable these orange & blue lines that are under my code on line 3 & 4? It's a mess when there is a lot of code.
This is most probably "editor.guides.bracketPairsHorizontal".
See if this setting exists in your settings.json; if it's there, it's probably set to true.
You can set it to "active" to only show up for the scope where your caret is or to false to never show at all.
