Wow, looks like flukes maybe mixed with some kind of worms. My story is similar to yours in that when I started taking anti parasitic herbs the first time a big worm like thing came out and that was the only time I ever saw that and I also got out lots of flukes.
Now I am a stage where I trying meidcations and taking praziquantil. I think you definetely have flukes judging from the pictures. I've also gotten ones in the past that are very hard to break like hard rubber.
If you're continuing to pass them that sounds like a good sign actually. As long as you don't feel like they are moving around more or something it could be a good thing. The only thing I might personally is medication like albendazole or praziquantil to go stronger after them but it sounds like what you are doing is working. Some people have mixed feelings about herbs and medications but I felt like after taking the herbs awhile they may have caused parasites to scatter more in my body but it's so hard to say for sure anyway. If it's still working though I'd keep on that. They say for herbal cleanses tend to be 30 day rounds at a time as in 30 days of herb, a little time off and repeating the cleanse to get other ones that may have been missed and eggs, etc