Hey cali sister!
Welcome to the journey. It is a big step and a HUGE act of self love : caring for yourself enough to get the help you need, investing time and money in your growth and healing so you are very right to feel proud and happy.
I have been in therapy for 7 months now. It is difficult at times, but I have my reward in that I am grounded, more able to be in the moment, have a clearer view of reality. It is also possible for me to feel joy now, which is something I had not felt for the past 3 years. I still have days when I am in a lot of emotional pain but I am better able to deal with it: to accept it as a part of life, to hold space for myself, to allow myself to express pain in an environment where I feel safe (this is usually not around other people lol).
If you would like please share your fears and any questions you have here at tiny buddha as and when they come up in therapy process, as well as communicating them to your therapist.
Good luck!
M