If you are only getting the bad ending, make sure to help Pierrot at the beginning of the game, and you'll be able to make a large variety of choices afterwards. As for the rest of the endings, they're not done yet so the most you can do is get to the end of day 2. Just a warning, end of day 2 always ends with the same scene, but the in between of helping Pierrot and the end of day 2 has multiple scenes that are different depending on what decisions you make, so don't get discouraged if you think it makes no difference.