If anyone needs inspiration for a character I suggest going to a place in real life. Go to a thrift store, or your closet, or; like me; a drama wardrobe. Have a slight idea as to what you character's personality is, then pick out one article of clothing that speaks to you as something your character will wear. (It helps to not have any memories associated with the piece, so thrift store works best)
Put it on. This is where some acting comes in. You don't have to be the greatest actor, but thinking about this really helps. You are going to become your character, based on the clothing and personality you gave them. How do they walk? Do they speak with an accent or speech impediment? What is their posture like? Ask your self those questions until you're confident that you know who they are. Note: Try not to relate anything to yourself. It can be easy to add a personality similar to your own, so the best option is to do opposites while just starting out.Ex: If you're a nice person, your character is mean. If you're intelligent, your character has a below average IQ. Etc.
Next can be a background story. What my drama class did was lay down with most of the lights off, become our characters, and relax. From there our teacher gave us prompts. Things like "what is the place you feel most relaxed?" "You're opening a door to the thing you care about most..." Those kinds of things. For you though, try to think about yourself as your character. Do they have any friends? Where do they live? Any pets? Dis/likes...etc. Sometimes the basics are the easiest to answer first and from there you can work out the harder stuff. Try staying away from "they've been abused so that's why they're like this" kind of an answer. If you do decide to go down that path, ask your self as many questions as you can. "What did they do to deserve being abused?" "Why didn't (insert other parent here) leave the abusive relationship?" "What's their family like?" "Is anyone nice?" Ask plenty and make sure you have thought out answers as subjects like mental illnesses or abuse are serious topics, and don't throw them in as a quick backstory.
Here comes the fun part! Draw them. You have their clothing and everything else about them and now the "last" part to do is draw them. You don't have to be the best artist, but having a visual of your character can also help you edit anything you need to. With a drawing, you can keep a visual time line of how your characters design changed. Include everything that you acted into the drawing. The one piece of clothing you picked out, the slight tilt in their back, what ever you envisioned your character to look like IRL.
Congratulations! You know know how to make a basic original character in real life! Remember: "
Characters change, just like regular people do and I can’t wait to see what they become." Don't be afraid to change/ add to your character if you're missing a few things. Try doing some OC interview sheets to go further in depth with your character. And hey! If you're character is wearing normal clothing (no ears, tails, full body armor) you can be your character during your day to day schedule. Walk around as somebody else. Someone you created. (Note: If you're character is an a**hole, don't go around punching people in the face, etc. It's not cool, even if you were "acting")