Q.Feeding lawn
I live in southeast Texas and would like to know if it’s too early to put weed and feed on my lawn?

Does your lawn really need a weed and feed application? Early spring may not be the best time to fertilize and treat weeds.
If you do use a weed and feed, make sure it does list the weeds that you have.
The links below will help you determine the best fertilizer choice for your lawn.
http://blogs.cornell.edu/hort/2011/04/12/lawn-myth-busting-skip-spring-%E2%80%98weed-and-feed%E2%80%99/
https://www.gardeningknowhow.com/planting-zones/texas-planting-zones.htm
https://www.gardeningknowhow.com/lawn-care/lgen/spring-lawn-maintenance.htm
https://www.gardeningknowhow.com/lawn-care/lgen/lawn-fertilizer-tips.htm
I would also encourage you to talk with your County Extension Office. The will give you the best schedule and usage of fertilizer/weed combination to use for your zone. They can give you specifics to your region, grass time and weather.
Here is a link to help you locate your nearest office.
https://www.gardeningknowhow.com/extension-search/