I know exactly what you mean man, I had this about a year ago myself, didn’t know where my DJ’ing was going, or if it was even going at all.
But I just cracked on, kept mixing away, but I also listened to loads of other DJ’s mixes. This helped me sort of compare my stuff to theirs, see where I thought my level of DJ skills where actually at.
One thing that did help relive my block, was landing a residency. It was something new, and it was like a breath of fresh air. Just keep cracking on maybe try and find a new “project” to do with DJing and you will overcome this “DJ Block”
Hope this helps 🙂