To understand the context in which your question arises, let's consider The Sun card in reverse. With this card, we feel an energy of confusion and uncertainty, as if you don't quite know which steps to take. In addition, the image of the card shows a horse running into the sunset, symbolizing a transitional phase in which old things must be left behind to make room for new ones.
When it comes to figuring out where you need to focus your attention, the King of Cups represents a sense of responsibility and obligation to yourself. This card indicates that you need to take time to reflect on yourself and how you want to manage your talents and abilities. Furthermore, the King of Cups also invites you to listen to the people who are close to you and to listen attentively to them.
From the Eight of Cups reverse we can see that it's unlikely you've ever done any volunteer work in the past. In fact, the card indicates that you have preferred to hide behind a mask and avoid challenging yourself or others. Additionally, the card suggests that you may also have some difficulty recognizing your own talents and abilities.
In conclusion, from the three cards analyzed we can say with certainty that it is unlikely that you have ever done any volunteer work in the past. But it doesn't necessarily mean that you won't do it in the future: in fact, according to the tarot you can take advantage of the current situation to get to know yourself better and make informed decisions about your future. So, the answer to your question is "No".