Bettie Bangs suggestions

I have made several attempts to have bettie bangs (like these) in the past 5 years, both cut by me and at the salon, and I can't seem to get them to look anything like the pictures I bring. I think it may be because my hair is too thin? Every year or so I am tormented enough from browsing tumblr to try again, always with the same crappy result. I can never get them to actually stay in that shape, and they are always either too long or too short. Here is a recent pic of me-I normally have these bangs Any advice?