You shouldn't be so hard on yourself; I'll bet the email isn't nearly as bad as you think. Having said that, I'm pretty awful at relationships myself.

Who did you send this email to?

great darling my fingers are crossed for you ...i hope you have soon fantastic news !!!a lots of kisses for you !!!!have nice week start!!

I wish I could tell you it gets easier with age but I am experiencing that it does not.
Hang in there .

i am so much better at my job than i am at keeping girl friends.

Maybe it was the most important email in your life, but it didn't work out. Go on with your life and take the next opportunity. I'll hope the result will be better then.