I think I drank alcohol

My girlfriend’s cousin was getting married over the weekend so we went to their party, big Hispanic family. And one of her uncles offered me some and ALC drinks which I declined, I asked if he had any sodas and stuff and he mentioned he had some lemonade, so I said I’ll take some. About halfway through the cup it started to taste like tequila. I’m scared shitless as I have 30 days left until my probation is over and I’m not trying to get revoked and or jail. My girlfriend asked him (she speaks Spanish and so does the uncle) if there was alcohol in it and he said ya Titos. What should I do? Deffered adjudication in Collin county.