I guess for me it would depend on my relationship with the therapist. Do you trust her? Does she know how you are coping? Does she know what kind of support you have?

If the answer is yes, then I would at least do some research on the place she wants you to go to this summer. From what you wrote, it sounds like she thinks that you are safe but that you need a higher level of treatment to really recover, so she is suggesting that when it won't affect school, you seek that treatment.

If you don't feel like you can trust your therapist to have a good feel for what you need, then perhaps another therapist would be a good choice. That way you would have a second opinion.