MWF GE smartfilter refrigerator water filter needs to be replaced monthly? (instead of 6 months)
Clearly, something is plugging up your filter, as replacing the filter (temporarily) fixes the problem. And, just as clearly, it isn't something unusual about the specific filter.

Almost certainly, the problem is with your water: something in it is plugging up the filter. The obvious culprit would be fine particulates that gum up the pores in the filter far faster than expected.

If you disassemble a failed filter you'll probably find the filter media clogged with a fine, probably brown material. Another test would be to fill a glass of water and let it sit overnight; if there's sediment on the bottom in the morning then bingo: you have particulates in your water.

What do you do? Well, you could buy an external water filter system, e.g. something meant to be mounted under a sink, and have it filter everything going into the fridge. That way you can have a much higher-capacity filter, your in-fridge filter will last much longer, and (as it won't be proprietary) the system as a whole should be much cheaper.