About you being scared....I will add that this is my third time to goal. The first two times I got to goal I only ever added in the first several rungs of food (extra veggies and dairy, berries, nuts and seeds) because honestly I did not think I'd ever be able to eat more than about 30-40 carbs or that I would be able to tolerate higher carb items like beans or apples or whatever. This time I was <determined> that if I really wanted this to be for <life> I had to give any thing I liked a good go instead of just assuming that I couldn't have it.
I have done that and it has not been easy, but it has been worth it and I have found that I can tolerate many more carbs than I suspected and even am able to eat things like a few tortilla chips, a little rice, most fruits, etc. with no ill effects (symptoms or weight gain). It's been amazingly freeing to me and now I know what I can and can't eat and how many carbs, etc. FOR LIFE.
I will say that when I tried adding cherries cravings set in and honestly it took other peeps on here to point out to me that the cherries could be the cause of my cravings and wanting to eat anything I could get my hands on! I never would have thought cherries would do it. Now I know.
I can eat most other fruits (still have not tried grapes or bananas yet because I don't really love them).
So yes, it is scary to leave the comfort of induction and the lower carb foods, but it is also very rewarding.
One more thing...instead of adding in one new food/5 carbs each week, do it over two weeks....very slowly so you are sure that something isn't causing problems - or that it seems like it is, but it really isn't. I actually lost better as I started up the ladder (all three times I did it)! It's very personal and you'll have to find what works for you, but the only way to do that is to try it.