In my experience "pro se" (do it yourself) divorce is only practical if you just want out and only want what you already have, in your own name, in the way of property. Also you cannot have minor kids for this to work.
If your spouse has no problem with this then he simply makes no response to anything and you get a "default" divorce with property treated as I described. If you want court ordered alimony (not as easy in Texas as in some states) and your husband will fight this then you probably need a lawyer, and in Texas the attorney's fees cannot be borrowed or supplied by any third party, to finance a divorce. Nor can an attorney take "family law" cases on contingency. I'm sure you understand that if your health insurance derives from his employment then it will stop as soon as you become divorced, unless you can continue it (at a much higher rate) and there is nothing he can do about this.
From what you have said it sounds like there must be a little more to it than you are willing to talk about. I hope you can work it out with him instead of divorcing.