Confused

I'm confused and unsure what to do.  Things are tense in my household.  I think the tension can be cut with a knife.  I'm tired of fighting, but I don't know what to do to make things better.  I try to talk, but get no where.  We fight and get no where.  I'm scared and frustrated and just want things to get better.  But, I don't know how to get them there.