Because it seems that you are not enjoying quilting activities now, maybe you are feeling a bit guilty for having so much invested in this activity?
If you have the space to store your stuff - I also suggest just closing the door on it for a while and not even think about quilting or any related activities for a while.
It takes a lot to replace that stuff.
However, if you truly truly dislike quilting (which is very different from being temporarily frustrated). then I see no point in hanging on to everything.
But please do try a "temporary separation" before going to "divorce" mode.