How much/often of the Clonazepam are you taking? The GABAergic effect will probably clean up how the Rue feels and will make it less noticeable, i get a cleaning up of the bodyload by adding 3 to 4.5 grams of Lemon Balm leaf, which also has GABAergic effects, with my Rue, to the point where i feel some of the Rue but the body and headspace feels much cleaner. So that could be one thing, the Clonazepam cleaning up how the Rue feels so you don't really feel it as much.
Another thing it could be, is weak seed, which in all my days of working with Rue i've never come across a weak batch, they've all always been pretty much the same consistent potency. You said you bought a kilo for 6 bucks? The price seems a bit too cheap to me, but idk if that would reflect the potency.
Another thing it could be is perhaps you have high amounts of the liver enzyme CYP2D6, which metabolizes the Harmalas found in Rue, thus requiring a higher dosage of Rue, but 50 grams or more seems excessive to me, even for that. Plus the more one consumes Rue regularly, the Harmalas in Rue start inhibiting CYP2D6 which works into it's reverse tolerance so the more you take the Rue the stronger and even longer in duration it gets.
So have you tried the ground up seed powder in capsules? I've never tried the seed (whole or powdered) in a paper towel, i would say try using capsules, maybe the paper towel is throwing off the absorption? Whole seeds have been said to not be digested/absorbed as well, even if one chews the seeds they don't seem to absorb well, so always go for powdered. You really shouldn't need more than 4 to 5 grams, 4 to 5 grams is pretty strong. You definitely shouldn't need to go over 10 grams though, so keep that in mind.
And, not that you need to avoid any kinds of food like Tyramine-containing foods when taking this stuff, since it's a reversible and selective MAO-A inhibitor and as such does not have interactions with the diet and Tyramine, do you fast for at least a few hours beforehand? If you eat sometime before taking the Rue, it can throw off the absorption/digestion of the Rue and will make it take longer to kick in. Some people have found that if you eat a little something, like some crackers or a light meal right after taking the Rue/Harmalas it can help things kick in more, but try not to eat anything like 4 to 6 hours beforehand. Ideally you want an empty stomach, but some people feel better with a little something in their stomach after taking it.
With all that said, Rue/Harmalas on it's own really doesn't cause much in the way of Entheogenic/Psychedelic effects, you can get some trails, maybe some insights and some other things, but usually it needs a Light plant to bring out the Rue's effects but also to contribute the Light effects to the mix, some DMT or Psilocin for example would constitute the Light, Cannabis also can act as a Light plant when combined with Rue i've noticed, but that may just be after one has had a good bit of prior Psychedelic activation, and then Cannabis can in a way kind of reactivate some of the Psychedelic headspace. So Rue or Caapi or Harmalas in general, don't really provide much ime, some say they get some closed eyed imagery, i've had that some just from Rue/Harmalas alone, but for the big shebang, experience-wise, you really need the addition of a Light compound in the mix to get the most out of it.