You need to take a step back and work on yard work.
I would train that dog to sit on its butt whenever, wherever, no matter the distraction (you'll need some birds). That way you can at least stop the dog in its tracks, allowing you to catch up.
I would also tattoo a good recall on its brain. The thing about an e-collar...sometimes dogs get out there so far, like beyond whistle range, that you need to be able to reach out and touch them to communicate and the e-collar can do that. But you have to teach the dog what the juice means and how to turn it off.
Don't take the dog back out until it is coming when called and sitting on command in a variety of places, not just your yard, and under a variety of conditions with different stimuli. Doing that might well save your dog's life.
The video below is annoying for several reasons, but the advice given isn't bad. Pay attention to what he says about using a leash and not letting the dog decide it's okay to run away rather than come back.
https://www.youtube.com/watch?v=7mXdPpKywzo