I very strongly, make that extremely strongly, don't believe you're wearing chains that fast.

I suspect that you're falling victim to gadgets that are over estimating the chain wear.

Start by tossing the gadgets, and measure chain wear with dime store 12" ruler. If the ruler doesn't overhang the 0 &12" marks, measure 11-1/2" from 1/4"to 11-3/4". that will give you a true sense of the condition based on a rule of thumb that says replace when stretched 1/8" over 12". Some people replace earlier, using 1/16" as the cutoff, so somewhere between depending on your preference.

Once you have the meast regents straight, you may consider alternating 2-3 chains, switching them out every few hundred miles (300-600, depending on a wear rate, or by thirds of the estimated life). Rotating chains allows taking them well beyond the normal guidelines, since the chain's and sprockets are always closely matched for wear.

Lastly, stop obsessing zbout keeping the chain's clean. Use a decent lube, and dry wipe the chain before adding lube so it doesn't carry loose dirt and grit into the chain.