You recently earned your Private Pilot certificate. You have 75 hours of flight time, and 12 hours

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Question:

You recently earned your Private Pilot certificate. You have 75 hours of flight time, and 12 hours of cross-country experience. You start instrument training in the following semester after completing your Private Pilot certificate but have not flown a cross-country flight for a couple of months.
Plane: After completing your flight training in a G1000-equipped Cessna 172S you are renting a Cessna 172M from the local FBO. You have been checked out in the plane and feel confident in your ability fly it although it has a round-gage instrument panel and is equipped with a Garmin 430 GPS. When you were checked out the instructor showed you how to use the GPS, and you are pretty sure that you remember how to do the "direct-enter-enter" process. Two other differences between this airplane and your training airplane are carburetor heat and 40 ̊ of flaps. Some recent discrepancies include being difficult to start (the engine turns but does not catch), and a rough running magneto during the mag check. Some spark plugs were replaced within the previous 10 hours of flight time.
Environment: It has been a normal Saturday in July. KFFA is a shorter runway than you are used to at 3,000 feet, and the destination runway is 7,100 feet. Although it is VFR, it is a typical summer day in the south: hot (near 90° F), humid with a density altitude of 2,500 feet, and hazy (visibility 8 miles along you route). The breeze coming from the ocean is creating a 14-knot crosswind with gusts to 20 but is forecasted to drop later in the evening. You also need to stop for fuel along your route to keep within your 1-hour of fuel reserve, and there is no fuel service at KFFA.
External Pressures: You made this trip to fulfill a dream that you have had since learning about the Wright Brothers and their first powered flight in Kitty Hawk, NC. You promised yourself that once you earned a Private Pilot certificate you would fly there.
You have taken two of your friends and had an awesome day at the museum, the Wright Memorial, and some excellent local seafood. You are a little late in departing and you planned to be on the ground by sunset, but it will be dark now. There is a cold front approaching from west, but it is forecasted to arrive at your destination two hours after you estimated arrival time.

You should address all aspects of the given scenario and personally place yourself in the scenario. Pretend your Designated Pilot Examiner (DPE) has given the flight scenario. What are the concepts you should cover? How does this affect you personally?