Addictions

When do you step in and help someone who you think is in trouble?  Is it ok to speak up and help someone who doesn’t want to see the reality of their actions?  Is it a fair assumption that because you yourself have been in similar situations that you can relate?  Or is this relating more for your benefit?  So you yourself can confirm that you have healed and moved on from your past situations. Because you have survived this already thus you know what to do.  But is it really safe to assume that similarities are even similar at all?  What about learning from our mistakes?  It is a hard choice to walk away, but sometimes it is what we have to do....and then hope that this mistake... this last mistake.. they will finally learn from.