Help with The Sims 2

[lems]

It worked!  {yes}

It seems a little slow, sometimes freezes for a second, but that is fine. There is so much in the game. Such great value for Australian $25.

I have so many questions, but I will read up guides etc before annoying everyone here. I just have one question I could not find an answer to and would like to use almost straight away as I have the Lifetime wants now. If I use the ReNuYuSenso Orb to change an Aspiration, can you buy it again? I see one bottle in my inventory, and there's also a machine looking one in the Aspiration list. So because that wasn't in Life Stories, it's very new to me. I don't want to mess up more. I already messed up by picking grilled cheese somehow as the 2nd aspiration.