I have a warrant for missing court for a $5 bag of marijuana probation case. I owe for fines. I have 3 children and concerned about going to jail

I suggest you turn yourself in since you know there's a warrant for your arrest -- and ask for an attorney from the Public Defender's Office to represent you.  You are entitled to have an attorney represent you on VOP cases.  But when you go to court, you will need to ask the judge for one to be appointed.  If the judge determines you do not have sufficient income or assets to retain an attorney, the judge should appoint one to represent you if you ask for one.