You do have things to say. Talk about anything that comes to your mind and it will take off from there.

I do understand. I spent months sitting quietly with "nothing to say". In truth, I was unwilling to begin, I was censoring my thoughts and not letting them be spoken. I was afraid of judgement, afraid of sounding unintelligent, afraid of looking stupid, afraid of boring my therapist, thinking nothing I had to say was important, afraid ultimately of being rejected by the therapist. But that's me and what my 'nothing to say' was about.

Silence carries it's own message.

Go ahead and jump in. Sounds easy but I know it isn't necessaritly. But deciding to just go and talk about anything at all might help you as it did me.