Hello everybody!

I've been on FFXIV for quite some time now, but I never became a hrdcore plyer due to the fact that I was always alone in-game. This time I decided to start playing again and even brought along my wife, now I think I won't end up alone.

I've a couple of questions. I'm sry if they're already solved somwhere here.

1) What would be the standard "path" to follow in-game?
Not doing quests -> more quests, by "standart path" I mean about changing classes, going somewhere else other than the main path, these things. I know I have to level up Marauder, but I'm not sure when do I stop leveling lancer and go for Marauder.

2) I can become whenever class I want? Like, become a Dragoon and then become a Ninja?
I know that I can become whichever 1st job I want (marauder, lancer) but I don't know about these higher classes

I've some other questions but can't remember them now, they always come to me when I'm playing and then I forget them.

Thank you!