K.B.
Discreetly contact a local lawyer. you need to get everything done right to protect you and your child. You probally need a fulltime job. Texas generally does not require Alimony.
Do NOT date for at least 2 years after your divorce is finalized. You need time for yourself and your child does not need a new dad right afterwards.
Find support. You will need backup babysitters.
What is your transportation like? If you need to get a new car, do it now before you file as your credit probally won't be approved.
Divorce Care is a free program usually held at churches. It really helps you find support from people in the same situation and they are less likely to get sick of hearing about how hard it is.