'Does the environment agency or angler's trust actually do anything for us, seriously do they?'
The EA no. Not on a meaningful scale, but then it has always been set up to fail by every single Govt since its formation in 1995.
I don't believe the Angling Trust is perfect, they have some ideas and policies I disagree with, but ultimately they do a decent job on the scant resources they have. Fish Legal in particular have an admirable record in tackling polluters - they just need more money to it. And they will only get that if more anglers support them.
The new(ish) CEO Jamie Cook comes across well imo, and looks like a man able to get things done. I just wish more anglers would join, £29/year is nothing really. If just 50% of all anglers were members the AT would be the most influential NGO in the land.