You can follow several tips given on the sites themselves to be 'honest', consistent and pay attention to tricky questions. There are some guidance available on YouTube too. Getting disqualified can be frustrating and I get that all the time. If it is at the beginning of the survey, then its not a big deal, but sometimes some badly designed ones disqualify at the last moment after spending like half hour or more. In those cases you can raise a support ticket. Prime Opinion is very good at compensating for such cases after you reach certain level.

Note, you cannot use this as income source, IMO. But some people do make this a full time job making thousands of dollars per month, obviously they have trickery up their sleeves being dishonest with answers. But one thing I learned being fully honest doesn't get us anywhere. Sometimes we have to play their games. Small example, lets say a survey is about ketchup. Lets say I consumed couple of brands 6 months ago, but not in the last 3 months. If the survey asks if I consumed those brands in the last month I would say yes. Because subsequent questions they ask about quality of the ketchup, brand reputation, etc wouldn't have changed in the last 4-5 months and we can still give useful answers. These days they even use AI to assess if we are being truthful. So we have to be consistent with out answers across different surveys as they can track us. I strongly recommend using incognito browsing sessions so that they can't track personas through cookies for too long. You'll learn as you keep attending more.Good luck! Feel free to ask any questions through DM, I can share my experiences.