IMPO,
you most definitely can, the hardest part is believing it and visualizing a new probable self with consistency and expectency. No room for doubts if you are WILLing to do the changing of belief system work. I've done it to some extent - as a child/teen I was always rail thin then in my thirties up to 169lbs. Upon reading quantum articles from many energies that confirm your cells do what you tell them to do, for, you create your body/illusion on a daily basis - only prob is that in the morning you look at yourself in the mirror and expect to see the same image - remember - you get what you focus on. So, fed up with my weight I would internally tell my cells to remember (as it all stays stored in cellular memory) that you are once again thin. I did it and now weigh 117, 5"6', late forties. Did the same w/large pores which became smaller, and told my body to produce more collagen and I look ten years younger.
Much to your disbelief, it's true.
But, it goes that far. I had a reading eons ago that Seth said you can literally grow taller or shorter, grow hair even if you've never had it, and even look like anyone you'd like. Altho I believe that can be done, I haven't reached that kind of belief that I can look like Angelina Jolie or have large breasts which I'd like to read that book you recommended. How much time will it take? As long as you believe it will (as for my experiences). Nothing is etched in stone and we're all an illusion and maleable energy. GO FOR IT! Keep us posted! I am going to a retreat where they show ppl that look younger or who have changed a visible disability, etc. I'm a walk your talk kind of person and would like to see this. As JC said, "you can do and be like me, if you want to." Why not? But then again, comes the acceptance of yourself and the genes you're proud of inhereting. But, the ball is in our court, is my belief. Consistency and intense desire/belief is key. Good luck!