I think playtime and style matters. I think if you want to be completely carried Bahamut is not the right place. There are some very high quality mercs for things... but you need to do the content to get better at it. Just how it goes. It is a larger server, but people still talk between linkshells, so harder to be "anonymous" about anything. That is either a good or bad thing for you. I like seeing the same people and meet new people and help them out.
Bahamut it feels like anyone logging on is doing something, so unless you catch us, you are probably planning for next time, or joining them in what they are doing. I view it as a longer term good server, but not maybe the best for short term, play 3 months and get all your stuff done. Can be done, and shout groups usually fill up if people have patience. (and by that it isn't even that bad... not nearly as bad as shouting in the 75 era in many cases...).
If you burned through your gil,, my advice is to slow it down and enjoy the game. Try different jobs you've never tried. I'm always amazed that I will go out and pimp out dnc or blu and really enjoy them etc. Also clearing content with people that are friends ends up being so much more fun.
When I came back I waited a year to jump out of my old social shell, and knew many of the people in the other shell by the time I joined. But ya, you do you, if you are having fun, I support anyone helping keep the servers running!