In order to reach the Capital, Fidel and Miki needs to go through the Passage on the Cliffs, the Coast of Minoz, then through the town of Myiddok and finally traverse the Resulian Plains in order to reach Capital. Like any journey, this one starts off with the immediate dangers of monsters and threats along the way.
Kindly refer to the map above to navigate this area and find all items and points of interest in the area. Take note that some of the Gathering nodes here like the fishing and mining nodes won't be available until you unlock the necessary specialties.
Shortly after leaving the town, follow the path to find a save point. Use that and engage the enemies along the way. You'll get a tutorial about encounters, pre-emptive attacks, and escaping. Use pre-emptive attacks to your advantage.
Winning battles and sometimes opening chests yield Skill Points or SP. Once you have at least 25 SP, use that to unlock the Harvesting specialty. This reveals the harvesting points in all locations and allows you to interact with them to get a random amount of EXP, SP, Fol, and items. The higher this specialty's level gets, the more and better items you'll find.
Additionally, it's a good idea to invest SP on some Roles. These provide stat bonuses and the general tactic the character will take when controlled by the AI. New Roles can be unlocked by leveling up certain roles, quest completion, and Private Actions viewed. You can level up Roles by simply having them equipped in your characters and "using" them in battles. Additionally, you can spend SP to level them up instantly.
If you're still getting the ropes of your journey and you feel overwhelmed, you can always go back to the village and sleep in Fidel's house for free and get fully replenished to fight for another day. Spend some time "farming" enemies and resources if you want then when you're ready or comfortable, head east to the Coast of Minoz.