Gunnysacking is when you store your resentment and conflict and frustrations up until some conflict happens and it all is brought up. It is not healthy to do this.
Stick to the Topic
Learn how to manage conflict and engage with another in a healthy manner. Here are some tips and advice from leading relational counselors and behavior psychologists.
Degrading friends and family of the person you are engaging with is unhealthy and does more harm than good. While it may feel nice to protect yourself with a personal attack.
Don't Bring in Others
While it may be increasingly difficult, having a positive response to the other you are engaging with can be very helpful to the construction and success of the conversation. The goal is to make sure both parties are heard.