Yep lvl 25 for your own Chocobo and it's 2.5 GC seals to get and a LOT of running from town to town but the stories that go with the running are really great! You can pretty much lvl solo on leves especially with raising the levels of the leves with what ur comfortable with.
Crafting: What I did to have "nice" gear for my lower levels was craft the gear. It's easy and you save a TON of money. Plus, you can level your crafts while making new gear and feel "FABULOUS!" lol Oh, and make some money to if you play the market wards right.
You will definitely want to try leveling your Con at some point. This will help emensley with those "rest" periods you mentioned above. You can cure and protect/stone skin eventually if you take Con high enough. The cures alone will help. Also, Pugilist has Second wind which use to be a TP move but is not now and it is a nice way to cure in that "Oh snap!" moment.
Sites you can also use for help:
XIVPads Great site to see how your progressing and most of the XIV Community is registered and Premium Virtue works really hard to keep it updated.
FFXIVDB.com really cool site devoted to a lot of things and really easy to navigate. Not sure if the guy who made it has updated since latest release patch but still a nice solid base to look at items and gear.
Disciples of the Land Great site for well... just as it says; all your DoH/DoL jobs and other resources for those classes.
And last but not least Moogle Box Loaded with stuff is all I can say.
There is one more site that can help you find where certain NPCs are located if you can't find help on those sites and that's FFXIV yellow gremlin
Hope this helps get you on your way. Have you tried checking out the Excalibur forums to search for a LS to possibly help you with PTs and well just some friends to make? Also, you can check on XIV Pads to see if any of the LSs are recruiting.
Good Luck Kat and {Nice to meet you}{/wave} !