I have a civil hearing tomorrow and I want to represent my self. I would like to ask the judge for motion for continuance. How would I go about doing

In an eviction suit, the issue is usually did the tenant timely pay the rent required to the landlord.  Your request for a continuance should focus on why you need more time to obtain and present evidence that you timely paid the landlord the rent due.  If your particular eviction is based on something other than non-payment of rent, you need to focus on why additional time is needed to obtain and present evidence refuting whatever breach of the lease the landlord is using to evict you.  Note that the trial of an eviction case can only be postponed a maximum of 7 days unless the parties agree.  TRCP 510.7(c).One of the biggest mistakes tenants make in eviction proceedings is reciting excuses for why they couldn't pay their rent on time.  Making such excuses helps to prove the landlord's case that the tenant did not pay rent on time.  If you couldn't--and therefore didn't--pay your rent on time, you should negotiate with your landlord to pay what you owe plus a little extra for the landlord to waive, or forbear on exercising, its right to evict you.