i started off as a TH and now im lvl 15

i became interested of a '' dragoon ''
do i need to create a new character now?

or can i simply learn Lancer - Level 30 & Pugilist - Level 15 and change into a dragoon even though my '' MAIN '' is a TH?

There is no "main"
you level the subjobs, and when you want to become whatever, you start their quests to get higher levels n gear

Can have all the main jobs leveled up to 50, like BLM andDRG. You just have to have the subs to get the quest to get the stone/skills to turn into a more specialized job

so basically just ONE character is enough to become ANYTHING without the need of creating a second character?

means i can get all the advanced jobs with just one character?

yes

correct
this isnt WoW
You get to create a real bond with your char, you are going to do literally everything with him/her

thanks guys got it

which class is able to use vita?