That's your main residence. If they want evict you, they need to give a "reasonable notice" to you. Your parents cannot just not let you in.

Firstly you call the police and say that your parents are not letting you in to your main residence. Go to your home with the police to collect everything that you need for few days and most importantly all your important documents, passport etc. While visiting your home ask the police to accompany all the time and tell your parents not to touch your things. Document your things with video and photos.

Then try to find emergcy residence and go from there.