Think I came on too strong, what next?

[Grobo]

Thanks for your advice so far. I've written a text that basically says that I'm sorry for coming on too strong and for putting pressure on him. And also that I think it's because it was all so new to me.
I'm still unsure about whether to send it though. I just want to get it right this time. The one thing holding me back is that he said he'd maybe be ready in a few weeks. I don't want him to think that I'm rushing him by sending this message. But at the same time I want to apologise so he knows I won't be like how I was again. And I know that until I send it I won't be able to think about anything else!
My head is all over the place!