Set and Setting
Set - referring to your mindset going into the experience. Setting - referring to the physical and social environment in which the experience takes place.

Set
Maybe don't trip after negative events, such as getting fired or losing a loved one. Save your trip for when you're mentally prepared!
Mental State: Your current mood, thoughts, and emotions. A positive, calm mindset can lead to a more enjoyable experience, while anxiety or negative feelings may result in a challenging trip. Expectations: What you anticipate from the experience can significantly influence its outcome. Entering with open-mindedness and curiosity can enhance the journey, while fear or apprehension can create barriers. Personal History: Previous experiences with psychedelics or mental health can affect how you respond to the substance. Understanding your past reactions is vital for gauging potential outcomes. Health Status: Both physical and mental health conditions can impact how you experience psychedelics. Those with a history of mental health issues should be particularly cautious.
Setting
It wouldn't personally be recommended for your first trip to be at a rave, or even in public at all. You're better off tripping at home.
Physical Environment: The location should be safe, comfortable, and conducive to a positive experience. Natural settings, such as parks or quiet rooms, are often recommended. However, if possible, it is advisable to start your journey at home, where you can control the environment and feel more secure. This familiar space allows for a greater sense of comfort and reduces external stressors. Social Environment: The people present during the experience can greatly influence its quality. Ideally, you should be with supportive and trusted individuals, such as friends or a designated sitter. Their presence can provide comfort and reassurance, making it easier to navigate any challenging moments. Atmosphere: The ambiance of the setting, including lighting, music, and decor, can enhance or detract from the experience. Soft lighting, calming colors, and soothing music can create a welcoming atmosphere, while chaotic or harsh environments can lead to anxiety or discomfort. Consider incorporating elements that promote relaxation, such as cushions, blankets, and pleasant scents. Noise Levels: A quiet environment can help maintain focus and minimize distractions. If you're in a busy area, consider using earplugs or headphones to create a more tranquil atmosphere. Temperature: This one I cannot stress enough; it can lead to come-up anxiety. Ensure that the environment is at a comfortable temperature, as physical discomfort can detract from the experience. Having blankets or fans available can help you regulate your comfort level.