Yes. You must first make sure you know very well what the discovery answers say before trial. You will also have to learn how to submit the discovery answers to the trial judge so the judge can read them as well. Depending on the judge hearing your case, this could be complicated.
You might be able to get a lawyer to help prepare you to represent yourself for trial in this way. Some lawyers will do this type of "unbundled" work for a small fee or for no charge. See contact info at the end of this guide.
Once you are at trial, listen carefully to what the other party says when they are on the witness stand. They are under oath. They must tell the truth.
If what they say is very different from any answers that they gave you, you can use the other party's discovery answers to point their inconsistency out to the judge. If it happens too many times, you might tell the judge the other party may have a problem telling the truth about important issues.
Talk to a lawyer for more help.