Oh, don't feel guilty or bad. If you want to take a break, do. Sometimes it helps to come back to things with fresh eyes after a break. Believe me when I say that I am always interested when you write things (despite my bad commenting skills), because you do have talent by the bucketload.
Don't think that you have to do anything for anyone, but if you feel that you need outside input, you've always got something to look to.

and I feel like all I'm turning out is bad material
Take our word for it that you're not, but this is certainly a normal feeling which I can guarantee that every writer worth anything has felt at least once, probably several times.
Like I said, do break if you want to and don't worry about it. You mustn't force yourself to do things.