Attorneys licensed in TX will give the definitive answer to your question, but I will offer my opinion in the meantime. The chances of taking back your pleas at this point are slim and none. Sorry, but that's the way I see it. To be certain you should meet privately with a good criminal defense attorney in Travis to give you the final word on this.
About your only option is consulting an appellate attorney to see if you have grounds to try to get your case overturned on a writ of habeas corpus.
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It is very difficult to try to and be successful in a motion to withdraw your former plea of guilty. Judges disfavor these motions, even when filed timely. Consult with a criminal defense attorney in your area to see what the chances are in front of that judge based on the facts you assert. There are governing rules of criminal procedure that set timelines to act. Act now.
I am trying to give you a general answer to your question. We do not have an attorney-client relationship by this response on the avvo website. I have not been retained to represent you. I am licensed to practice law in Kentucky and in federal court in this state and the Southern District of Indiana. You need to seek legal advice from an attorney licensed to practice in your area..