My LEDs also last 6 months. None of mine have lasted a year.
Perhaps if you try another brand? I get mine on line or at one of the box stores or lately from the power companies which offer them at huge discounts to their customers.
They all come with guarantees so you should be able to replace them. I would want to know why you are getting such a short life out of them.
It's a crapshoot with LED lighting. Those who say they don't fail, haven't bought enough or used them long. We've had about 10 percent of them fail. We bought some economy LED bulbs at Costco, bundled perhaps 6 to 8 in a box, and most failed. We've bought LED fixtures at Lowes and Home Depot, and several of them have failed, which we returned for credit - I'm talking $100 fixtures. Sometimes they won't turn on, other times they blink .
LED lights can fail, mostly the electronics are crap, especially if made in China. There's no going back to incandescents, since they're no longer made in the USA and all the ones from China are crap and quickly burn out. So LED is the way to go, but beware of which ones have low quality and keep your receipts if they fail right away.