My 3.5-month-old Corgi puppy barks too much. How can I fix this?

You say you have tried many things that don't work. Do these include telling her "no," throwing a can of pennies in her direction, and other such interventions? If so, you may be encouraging the very behavior you want to stop. Dogs seek attention in various ways. When they want it, even negtive attention (scolding, etc.) is better to them than none. If you are certain that all of Juniper's needs have been met, and she has been vet-checked for a possible undiagnosed condition, then you must ignore the barking. Totally. Completely. Every single time. No matter how long she carries on! If barking has worked so far to get your attention, she is going to continue to do what works. But, as Dr. Phil says, "You don't reward bad behavior." She may even get worse temporarily, because if you always responded to the barking before, she may try the "more, longer, louder" approach. This does not mean that the treatment isn't helping. On the contrary, it means she has noticed a shift in the response (in this case, lack of response) she is getting and is making a last-ditch effort to get it to work again. Just stand your ground and you will find that, once the barking is no longer effective, it will stop. If you need additional help with this, you can click on the prompt to start a consult. Good luck!