Maybe you could ask yourself what would need to change for you to want to do well.

I don't really believe people always know what's best for them, but that may be my domineering streak showing. But, I mean, you see people making dumb decisions all the time. And I'm not saying I'm immune, either. I guess my point is that nobody knows what's best for them all of the time. Sometimes we do, sometimes we don't, sometimes we pretend to ourselves and/or others that we do/don't, and sometimes we do know but pretend it's something else we like better.

I wouldn't really worry about your therapist and being a problem over this issue. It's not her place to get worked up over your ambivalence.