This is the time of the year we hear reports of “does not crank” which I assume is your problem too. It happens now b/c the temperature is getting cooler, and that adversely affects just about everything to do with the cranking operation. Here’s what I’d do in that situation
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Batteries don’t last much beyond the three year mark in hot climates like Houston, so if yours is near to or over the 3 year mark, makes sense just to replace the battery. At that time the connectors and posts will be cleaned and tightened properly, so at least you’ll know you have a good battery for the winter, and it may indeed fix the problem completely.
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If not, you may have a failing starter motor. Ask your shop to check for that. If you’re a diy’er there’s some voltage tests you can run yourself if you like.