To get a journal you’ll need to get someone with internet access to post it for you or just do all the posts yourself at the end of your hike. To do the posting you’ll need to set up your own journal.
As for hikes: have fun, just pick a section and do it, and don’t over plan your milage. I’ve done a lot of section hikes and the biggest mistake I always make is getting gready to see as much trail as possible. Not that this is totally a bad thing, but if you get over eager in planning a section hike you may not get to enjoy places because of high miles you’ve got to make to stay on plan. Don’t assume you can make thru hiker miles because you haven’t gotten your trail legs under you yet.
If I had a month to kill I would go from Springer to Hot Springs. If I was planning an ambitious month, I would go from Springer to Damascus.
SGT Rock