Im trying to grt the good ending in the lizard tribe, what should i not do to not get the bad ending?
It's a lot easier to get the good ending than the bad. The main thing you need to do is not let the missing acolytes get raped when Othra has you search for them in the "Missing Acolytes" quest. Also, when you unlock the Lake of Purification after retrieving all three Lizard Statue pieces, tell Othra to keep the Lake's existence a secret for now (green option).