Your 18 so legally she don't have to let you back in her house. If you have stuff still in her house then you have to get a police escort to escort you through the house but you may have to prove the items you take are yours because posession is 9 tenths of the law. Good luck.
Your mother is full of spite just leave its not worth the drama
It all depends on what it is. If is furniture she has bought for you over the years, it is technically hers, and you were just allowed to use it. If it is clothes or mementos that you bought or were gifted to you by others, than it is yours to retrieve. I would make a list of items you want to get, and then arrange a time to pick them up. If necessary ask or a law enforcement officerto escort you.
If you have been living with your mother since you have been 18, it is likely that you have technically established residence there---so you probably have the technical right to enter that house.
I assume your parents are divorced---if your dad had an attorney represent him in the divorce, you might be able to have him call and ask the attorney what your legal rights are. Or you could just consult with an attorney that deals with family law.
Also, you could call the non-emergency number for your local police and ask them how they would respond to this situation---I'm sure they have dealt with similar situations before.
(YoWanna Cook's answer has some additional advice about proof of ownership and a police escort.)
Didn't find the answer you were looking for?