How to tackle hobby burnout

So i got back into warhammer last October, and I got into it hard, between then and now I've painted about 176 parade ready miniatures and had a blast doing so, well I say down today to continue my project and just...wasn't feeling it, my work was sloppy and I didn't care enoigh to go back and fix it

I love this hobby nad this universe and I don't want to stop but I don't know ow why my heart isn't in it anymore,

Any advice?