My therapist wants me to try psilocybin but I am concerned about a family history of psychosis, what are your thoughts the matter?

My therapist has been suggesting I try legal shroom therapy (he doesn't offer the service, but suggests I should find someone who does) as he thinks I would benefit a lot from it. However, I am very worried about the risk of it activating psychosis, as my uncle (who died before I was born) always claimed that his lifelong psychosis was caused by lsd. The therapist says that even with that the risks are low, he hasn't seen any signs of it, and if I do have a risk it could just as easily be activated by getting hit in the head.

What are your thoughts on the matter? Are the benifits of psilocybin worth the risk of a family history of risk? How much risk do you personally think there is?

My current plan I'm thinking is to spend the next 2 years getting in shape, get to a healthier weight, fix my sleep schedule as much as possible, and then when I am 30 and have no major health or sleep issues attempting it. However I am unsure about that.