Maybe this is not an advice, but a suggestion...
i. Choose background/origin you want to play with
- Each origin have different mood to play, have different motivations, different culture and view about the world. Choose which suite you best. For example do you like to be a noble person with noble background such as prince/princess, or do you like being a magical person who live in a tower, or a wild men living in the forest and hunting...ect...choose which suite you most
ii. Allocate attribues as you like to suite your character
- For example, if you play a noble, surely a noble have some education not like any common people, also a noble is a type of person who always engage in diplomacy, so add some Cunning points and Coercion, no matter what class you choose. If you are a wild men (Dalish Elf) living in the forest, surely you know how to survive, making traps and so on, so add in Survival and Trap Making no matter what class you choose
- don't mind about power gaming stats, just set it as you like
iii. Use armor/gears suite your race
- even though any race can wear any armor, but it is funny to see a Dwarf wearing Templar armor isn't it? So Dwarf wearing Dwarven armor only, Elf wearing Elven armor only and so on
iv. Learn specializations/skills/magic suite your morality and background
- Surely a good person will not be using Blood Magic, or learning Reaver specialization, no matter how want to justify it. Dalish Elf rogue and Ranger specialization is a good match, summoning wild animals. Dwarf warrior with Berserker and so on.
v. Make up your own theme based on your background
- For me, Human Noble is a Sword and Shield warrior with Templar and Champion specialization, Dalish Elf is an Archer with Ranger and Bard specialization, Dwarf Commoner is a Dual Wield Dagger Rogue with Duelist and Assassin specialization....as example.
vi. Make choice based on your character belief, religion, culture
- Human Noble might be more pro-Chantry, Dalish or City Elf might be biased against human, Mage might be pro-Chantry or against Chantry...and so on