My son only been with me for the past 1 year , he's fine when he gets what he wants , he has no pation for he's little sister, he thinks he should get paid for anything he does . He has been to know and to have explosevie temper problem , he treats he's step dad like crap, I don't know what to do , mentaly he's not 18 he knows no responsibility at all help

Where was your son before this? How old was he when he lived with you in the past?

Well legally he is an adult, so y9ou basically have two choices...
1. tell him it's time to move on, and get on with his life, pack his bags and get his own place.

2. You can try and go through counseling, and work things out, but if no avail you either have to put up with it, or go back to option #1.

I can tell you, that if I had an 18 year old under my roof, that was disrespectful to the other family members sharing the same roof, I would be going with option 1.

I only had him till he was 2, he's dad took off with him,when he's dad couldn't handle him they turned him over to the state, they called me and asked if id be willing to take him and I said yes,they said he has an exploseive behavior disorder, he would half to take meds all he's live ,he's not a normal 18 year old he wouldn't make it on he's on he was never taught anything at all, I just don't know what to do , he's dad already shut him out of he's life, my 5 year old is more responsible then he is

They let him come live with me at 17

You must get a social worker involved with your family to untangle this. The boy may need to live in a controlled residential situation. How did things go for him in school? Did he graduate from high school?

Are their support groups for people who have to live with family members with this disorder? Maybe there is like a half way home which will keep him on his meds and teach him some responsibility. I know it sounds harsh, but if you aren't equipped to deal with this disorder than you need to seek out side help.

It sounds like he isn't happy either, and I do understand personality disorders having to live with a family member as well as had a long term relationship who suffers from one, it took me a long time to realize they were as miserable as I was, and there was nothing I could do to help them.

You need to talk with a social worker and a physician about his situation. He probably will require some counseling to get past the issues he's faced.

The problem I see is his explosive temper. If there is any possibility that he will harm you or your 5 year old, you've got to get him out of your home.