Is it normal if i dont feel excited about something that ive always wanted?

I usually never get what I desire I guess because i think out of reality but hey anythings possible. So when things do happen the way I planned such as getting a job or having a guy in my fantasies finally talk to me, I have no emotions to express like it hasnt hit me and it never does. I know it seems normal but people still express some type of happiness when im just like blah what happened? Im probably the best example of the phrase "too good to be true" to the point where I avoid it like its whatever when it wasnt whatever before! it was something really important! This can be bad because it feels like i have no care in the world, what if when I have a baby? Am I just gonna be like ok so? It sounds like I take those things for granted but i dont think thats it. I just have no emotions i guess and ive been called heartless before but it sucks cause then I cant feel the happiness ive been working forever for :( Im also the type to never be satisfied and just want more. That could be a HUGE part of it. I guess Im just meant to long for things and never have them securely with me.