I've been a nurse for seven months, and I'm doing well, except that I suck at starting IVs. In school I was almost completely unable to do them, and I've improved to the point that now I virtually always can find and hit the vein with blood return, but I blow them constantly. I don't know what I'm doing wrong--I try to be gentle and advance the catheter very slowly, but they barely advance and when I try to flush, I just get a bubble under the skin and the patient gets a lovely bruis. I just suck at it, and my poor patients end up getting re-stuck by our charge nurse or someone who is actually capable of doing a decent job at it. It's incredibly embarrassing. Any advice? If it matters, I'm on a high-acuity step down unit with mostly cardiac patients.