No but seriously, Gabystie, I'm pretty new to frags, but I think this is the best advice you can get:
Don't be in a hurry to get a new frag. Spend some time trying stuff out in Sephora and Ulta, they always have plenty of testers laying around for you to sample stuff and the Sales Associates aren't pushy. They mostly have mainstream stuff (not Ungaro, M7, Rive Gauche and all the other stuff basenoters love), but the best thing I think is to sniff a lot of things and get an idea what you like before you actually shell out cash.
I mean think about it a bottle of cologne is probably gonna last you at least half a year, so it's a pretty big investment... it's worth taking the time to make sure you get the best thing. Once you have an idea of what kind of frag you like (there are different genres of frags, just like there are different genres of music, movies, etc.) then you can get into it more and start ordering samples online and stuff. Take your time