Welcome to PC.

Please call your therapist. Make another appointment. Explain the financial situation. Explain that you need support. And then see what your T has to say - if they can see you at a reduced price, or find you another T that is cheaper.

Trying to stop cutting by yourself is really hard, please stop doing it now before it becomes more of an obsession. In the main part of the self injury forum is a pinned topic - things you can do instead of SI (self injury). See if you can make a list of reasons not to cut, and a list of things you can do instead of cutting.