Unfortunately, I don't think anyone can give you a guarantee that your baby will one day sleep through when she's ready. I've seen lots of threads on here from mums whose babies/toddlers will only settle with BFing and that's absolutely not a problem as long as the mum is happy to do it. Just as patting to sleep is not a problem if mum is happy to do it.

I never CCd but I do see the point of gently encouraging babies to self-settle. And I do mean gently. I did it very gradually over many months.