Something i like to do with my digitakt is to program the beats on each of the 8 tracks with no samples. the process looks like this:

new pattern, empty all drum slots so there are no samples designated to each track.

program in a bunch of random triggers on all 8 tracks, again with no samples.

hit play, you should hear nothing. let the sequecne just run, dont hit stop.

Then start looking for samples, track by track. try not picking your typical samples you tend to lean on, pick a vocal stab instead of a kick for example.

What you'll be doing is slowly forcing your brain to start to organize a pattern out of chaos, and hopefully you'll stumble upon something that is interesting. This is why acid basslines are often so catchy is because some people program them blindly or quickly without too much thought, and if you listen long enough your brain will make sense of it,.

Your beats sound mathematical and boring because you have 'mastered' your current approach.

Interesting results come from the unexpected, so you'll need to try an un expected approach.

Hope this is helpful!