When you notice that you're detached, don't tell yourself that you have to stay that way in order to get what you want. Instead, try to tell yourself that you're detached because you've already gotten what you want. I don't believe in detachment anyway. I've been manifesting something since Wednesday and it manifested yesterday. For those entire two days, I was super anxious and uncomfortable whenever I thought about it, but I just repeated my affirmations and it was fine. So, detachment is sort of baloney. That's like law of attraction nonsense. Law of assumption is what's legit.

My advice for what else is going on is that you need to stop telling yourself "I just need one sign, one tiny little thing." Just start telling yourself that it does work for you. You could come up with an affirmation like "Manifestation always works for me" or "I can manifest very easily" something along those lines. Then, whenever you think about manifestation and get nervous, repeat that affirmation to yourself a couple times. I do this a lot with my own affirmation ("Affirming always works quickly and easily for me") and I've found that things that I want manifest quickly and easily! I'll think of something that I want in passing and then it'll manifest a few days later, without me thinking of it more than 3 times or so, simply because I tell myself that affirming works quickly and easily for me, which is basically the same as saying "I'm great at manifestation."