Oh no! Some games can be fiendishly difficult. All the games on this website are contributed by users - which means that we don't know the solutions either!
Your best bet is to post a comment on the game itself. Hopefully, either the author of the game, or another player, will be able help you out.
If you need help making a game with Quest, please take a look at the documentation first – the tutorial will guide you through all the steps you need to create your first game.
If you're still stuck, please try the forums – somebody may have already asked the same question, so it's a good idea to search first. Please make sure to post all the detail you can about your problem – if you can upload the file you're working on, that often helps a lot so we can see how you've set things up.
If you've forgotten your password, you can reset it here.