Tell the group members what is bothering you. If you need support, let the group know. If you think you need confrontation, let them know this also. It is important to tell people what you expect of them. In addition, you will probably be most helped and satisfied if you talk about your feelings.
Unexpressed feelings are a major reason why people experience difficulties.
When feelings are unexpressed, anger or guilt often becomes depression. The psychological safety of the group permits the expression of those feelings which are often very difficult to express outside the group. When we talk about revealing our feelings, we are talking about self-disclosure. Self disclosure is an important part of group therapy and relates very much to how well people get helped. How much you talk about yourself depends upon what you are comfortable with.