Why don't you try finishing up the tutorial? You might've mastered the first step, but nailing down the fundamentals is what's important.

Complete the Persona Compendium.

Max out all Confidants.

Create all types of infiltration tools.

Complete Chapter 1.

Exploit an enemy's weakness.

Win a battle.

Hit a home run at the batting cages.

Buy every kind of drink from vending machines.

New Modifications added to the Production List.

Defeat Lady Maria of the Astral Clocktower.

Any pilot learns 20 Skill Sets.

Buy all Power Parts (excluding Recommended) from the Side Plan, and upgrade Tac Management to Grade 6.