How long did it take to become attached to your original therapist? If the frustration is outweighing the rewards from your current T, then it's not on you to suffer more unrewarding sessions.
Americans are very much prone to internalizing...blaming failure on individuals. So patients in our health care system should stick it out and continue treatment because it's good for them, all the while their frustration builds.
HOWEVER you might tell your T honestly that forging attachment is key, and if they demostrated behaviors X and Y it would help. When I told my T to demonstrate less Z, things improved.
So much of therapy is behavioral and negotiable. Unlike Hollywood movies our partners and Ts dont magically know whats needed. You are spending money and time and emotional bandwidth. Those are finite resources.
Good luck within whatever you decide is best for you.

If you discontinue therapy, do stick around this forum. There are lots of folks to learn from with diverse experiences and different opinions.