Breast feeding question

My daughter will be 6 weeks tomorrow and I'm wondering if it's too late to teach her to get latched on. I've been pumping to feed her as well as supplementing with formula(maybe 1 bottle every 2 days when she wont wait for the breast milk bottle to heat up I give her formula cus she screams) anyway her tongue was tied and we couldn't get it clips for like 2 weeks so that's why we couldn't establish a good latch in the beginning. I did however put her on my boob so that she would get used to it and it hurt like hell because we didn't have a good latch. She now uses my boob as a soother but she will never have a full feeding from it & I know she doesn't have a good latch because I hear that clicking noise when she's on it. So has anybody had success latching their baby this late ? pumping is such a pain in the ass and I really want to bond with her I get super depressed thinking that we're never going to get a good latch.