My wisdom teeth are coming in and i haven't been able to get them removed due to personal reasons. they started to cut the inside of my mouth. how can i prevent them from cutting the inside of my mouth and easier to eat in the meantime?

Most people do not have enough room in their mouth for their wisdom teeth and the offending teeth impinge on the soft tissues around them. Not much you can do on your own. Whatever the personal reasons are, make the time and find the resources to be seen and have them extracted. Continued trauma can result in swelling and infection.

Rinsing w 1tsp salt in 8oz warm water may reduce some of the inflammation, but will not remove your problem. That can only be done by an oral surgeon.