I play 2nl both 6max and full ring on ACR. I am not quite playing TAG. I'm a LITTLE looser, but not much. I don't have a problem having positive sessions.
Yes, I take some bad beats. Yesterday I re-raised AA 6x the 3bb raise and got called with 22. Flop K66, put the villain all in, he called and turned a 2. It happens.
This doesn't really upset me. In fact it's what I want. I WANT people to call an 18x bb raise with 22 and go all in on a K66 flop. I lost that time, but will win over and over with the donkeys. Don't let it get you down.
If you are playing 6max you do need to open up your range a little, the blinds move too fast. Try to pick up small pots and build your stack rather than waiting and waiting for big hands that get beat or no one calls. If you are taking too many beats at 6 max move to a full ring.