Lets say a company that provides you the internet also has business with tv. Before they couldn't do anything about making it harder to access netflix. But without net neutrality that company can now say "hey, you like watching netflix I see. Well we'd rather you stick with television." and either make you pay extra to access sites like netflix OR ban it all together.
Also your bill might change. You pay to have access to the internet. Now it might be to access sites that take up more broadband you might need to pay extra to have access to those sites.
Hopefully there is still a chance to reverse this.