It is tricky to start a business when it soaks up your finances and time. I do believe time is a gift you can still give-- and you are entitled to go to parties and life events guilt free. If there is a cost involved ( travel to wedding or a gift) get creative. Could you carpool? Perhaps provide a creative but inexpensive gift with your talents? If that is not an option and attending will put finances in jeopardy just send a lovely heartfelt ( handwritten) card and a small gift if finances allow and skip the event.