yep thats a thing as well, are u using a pc or a mac, as the dude above said he's using logic 7, a fantastic programme but it's only avaible on the mac. u can get an older version for the pc.
I do agree ur better trying out as many programmes as is possible, pick up demo's off websites, such as fruityloops, cakewalk sonar, even tracktion.
With regards to what sort of music you want to make, are u gonna be doin rock, using a lot of guitars and so on, or are u more inclined to electronica, such as drum n bass, trance etc. If ur more a guitars lad, then it's cubase, but electronica is more suited to reason as it's midi controlled, u'll need a basic understanding of a keyboard, plus midi etiquette but u'll leanr on the way....i did.
I'm more inclined to cubase, always have, always will be, ifind it's style of working simplistic and effective it's a powerful programme n i've been with it since i were 17, so nearly 6 yrs now, n im still learning stuff about it. but everyone has a different approach so it may not neccessaryily be the right rpogramme for u.
anyways go try sum demo's out, see what u like, then go purchase a copy.