I'm trying to create a Dungeons and Dragons character. Help me brainstorm a potential backstory and how that backstory affects my character's abilities.
Here are some suggestions for building up your D&D character's background:

1.  Start with the race of your choice, such as human, dwarf, elf, or halfling. Pick one or two details about your character's racial heritage, such as their family name or village.
2.  Next, pick one skill from each ability score group (str, dex, int, wisdom, cha) and allocate them randomly into different skills. These will be your starting abilities.
3.  Choose three feats at random from the list provided in the Player's Handbook, or make your own using existing rulesets. Each feat grants you a new ability or boosts an old one, depending on its category (athletic, social, etc.). Make sure these choices complement your character's Back Story and overall concept.
4.  Determine your character's personality traits and write down some notes about what makes them tick. Some common stereotypes include: smart-aleck wizard, shy warrior, fierce barbarian.
5.  Decide whether your character has any congenital conditions or diseases. This can significantly impact their physical capabilities, personality, and outlook on life.
6.  Research the local political climate and try to determine why your character is stepping into this dangerous situation. Are they pursuing revenge against someone? Are they motivated by money or power? Consider adding motivations like these to your character's story.
7.  Finally, decide on a surname and choose a class. It might also be fun to create a nickname or alibi for your character. This will help you feel more attached to your creation and give you something unique to use when interacting with other players. 

Remember, everyone starts as a blank slate, so it's important to personalize your character and build a unique story around them. Good luck!