Sad to hear that.
Anyway, I'm here to help you!
MyJLC game includes exploring your partner's erogenous zones and requires a certain level of your attention to their needs. As in any game, from Tetris to a complex shooter, the conditions and requirements do change and lvl-up as you approach to the final boss, forcing you to fine-tune your tools and actions to achieve the goal. In your arsenal here you have a whole range of necessary basic adult 'weapons' that you may try in different situations, studying which of them will be the most effective for a particular partner with certain traits you have chosen(or random ones if you go with 'avanced' mode).
For beginners, it is highly recommended to use the 'highlight' of zones and 'detailed stats', which can be turned on in the settings.
The zones for different toys are different, so the highlight will help you to learn where and what can be applied. 'Detailed stats' will show you the real time feedback to your actions, that helps a lot to understand when you go beyond the limits of her tolerance.
You can also watch some let's plays for better understanding here >>