Nenormy

Hello colleagues,
I have Mazda 3 2.0 Diesel. I had a problem with the rear pads of the front arm bushes (were for a change). https://www.ebay.co.uk/itm/Mazda-3-B...sAAOSw6n5Xs50F
There was also a screaming. I changed them and everything was great in 2 weeks!
Now CULLES like a donkey is terrible, I'm ashamed to drive her. I lubricated these bushes with grease and silicone spray and NOTHING. They are true that the bushes are not for 100 eur. but some Chinese, but I think there will be no difference.
My question is:
1: If I change the tampons again, will I get better on a permanent basis? (TRV or LEMF)
2: Do you have an idea how to fix it? Every unevenness stitches!

I've changed: The whole bearers - new ones. Shocks - new. Shocks tampons - new!

Thanks in advance !!!