Can natural supplements such as Maca Root or Aguaje give me good results for my butt or am I better off getting a BBL?

I'm 19, and I've been really insecure about my backside. It's like I have everything in my boob area, but when it comes to my butt, it's just flat and unattractive. I've been looking up supplements such as maca and aguaje but I'm still wary of any possible result going to my boob area. Recently I came across BBLs,and I can honestly say it can get better results. However, the con is the cost, and if I want one, I will have to save up. Should I try the cheaper route with the supplements, or save my money?