A couple points.
First, I see a therapist who also specializes in gender identity issues. For the first six months, I saw her almost weekly, which added up in terms of cost but turned out to be completely worth it. Then we dropped to once a month, then every two months, now it's about every three months, unless I find an issue I want to discuss with her. She's getting me a referral for a second therapist, in this case a licensed psychiatrist, who can also sign off on my GCS letters. I do not regret seeing Micki Washburn one bit over the last 35 months.
Second, depending on which surgeon you choose, you are likely to need one or more letters from a mental health professional stating they believe you are ready for GCS. In Dr. Chettawutt's case, I've been informed I can do one letter, if both mental health professionals sign it so my therapist is planning to do the letter and get that signature before I need to depart. You may want to give yourself six to twelve months lead time with a therapist and then a second therapist in order to get your letter(s) if and when you choose to do that.
Third, I've commented about this once before but transgender children who have accepting parents are as secure in their gender identities as cisgender children. It's when families are not accepting that we begin to doubt, to question, etc. It's when families browbeat us into submission that we wonder if we're the ones that are wrong. There are two corollaries to what I am writing about here. First is that cultural conditioning can harm people like us very greatly. Second is an effect of hormones. One therapist has written extensively about her observations and she has confirmed these observations with other therapists - to wit, trans women get on estrogen, start to feel fine, mistakenly believe themselves "cured" or that their GID is gone, so they detransition, stop taking hormones, and then after a few months as testosterone comes back, they fall back into GID and depression. You may want to ask yourself if this is happening to you.
Frankly, I've felt so wonderful early on with estrogen that I too questioned this but forearmed with this knowledge and my therapist (who also was aware of this) I was able to avoid doing the wrong thing and assuming I was "cured".