Easy max cooking skill
Purchase Luncheon Meats (100 Gil) from vendors in Lestallum. Buy approximately 60 to 75 meats to cook “Mystery Meat Sushi”. Then, cook 60 to 75 “Mystery Meat Sushi” using one Luncheon Meat per cook to max out the cooking skill in approximately 20 minutes and unlock the best recipes in the game.
Easy max fishing skill
Purchase the upgraded fishing rod and reel (costs 20,000 Gil) from the Vesperpool Lake fishing shop to make catching larger fish easier. It is also recommended to purchase the “Stinker: Great Maiboro” lure from the same shop, as it works really well at Vesperpool Lake. Equip them and start fishing at Vesperpool Lake, East Bank. This is in the north-western corner of the Cleigne map. Vesperpool Lake is the best fishing spot in the game. The more rare and large fish you catch, the greater skill increase you will get. Take a break at a campsite to increase your rank to make catching easier, then continue catching fish. Keep doing this for approximately 3 to 5 hours (depending on your luck) to max out the fishing skill.
Easy max photography skill
The toughest skill to max is photography. First, purchase the “Snapshot” Ascension to take photos during combat. This costs one Tech Bar. Purchase “Tech Strike/Tech Damage/Quick Tech” to recharge your Tech Bar faster. To fully max this skill, you will need to take pictures during all combat encounters, every time Prompto gets a Tech Bar. This will take a long time, but there is a quicker way. Put a rubberband around your Analog-stick and controller to automatically walk around. Leave the game on for hours. Check back once an hour to rest the party or make sure you are still moving around and have not gotten caught on something. Prompto will take pictures approximately every 3 minutes, or 20 pictures per hour. You need approximately 1,200 pictures to max out your photography skill.
Easy max survival skill
Survival also takes a long time to max out, but you can also put a rubberband around your Analog-stick and controller to automatically walk around in circles like with the photography skill. You do not need to sprint — just moving around is enough to get what you need. Leave the game on for hours. Check back once an hour to rest the party or make sure you are still moving around and have not gotten caught on something. Let the team run around for a full day or more to max out the skill, depending on your progress in the story. You will do lots of running as you play — so this will be unlocked naturally during the story. The game takes approximately 50 hours to complete, and the survival skill requires approximately 25 to 30 hours of running to max out. You can also use the “Infinite sprint” trick to speed things up.