Sounds like she needs more exercise - just letting her out doesn't count. Take a ball and throw for her to chase. Take her on walks. Exercise her mind with more and more training. Hide a special treat or toy and teach her to search and find it.
Wouldn't use an e collar for this, but Dogtra makes a good bark collar. Still wouldn't use it all the time.
Nothing is as simple as it seems or as complicated as we make it~
Attitude is everything -- Pick a good one!
Sofie AKA Ussina vom Haus Brezel
Jack von Jagenstadt
Tatty - Burmese bad cat