If you haven't played in 4-5 years, then you're going to be completely lost. They've added so many new mechanics since then, and they continue to add more. The exp curve trained dramatically, and they constantly nerf classes or training spots. At the moment, a hermit is one of the weaker classes unless you can fund yourself drastically (5b atleast). That being said, if you have old rare items, sell them and move onto a new character. Explorers had a revamp recently, so they got new skills and the ability to change jobs within their branch. So at 100, I believe, you can switch to a shadower, which is better off. Or if you have no funding, make a Zero or Xenon. They hit hard with no funding.