Advice on outlines ...

I've finally gotten around to working on my book again. I've been kicking around an idea for a book series in my head I've had for years. Lol..its nothing life changing or anything. Just imagine another book influenced by Harry Potter meets Sookie Stackhouse. Off and on I'll write on it for a few months until I burn out. I've recently finished another chapter. Its just a pipe dream for it ever to turn into a completed story.

Lol... I've got a lot of ideas and I get overwhelmed, so I just give up on it and hit a wall. I'm not really sure where to go, or how to actually organize my ideas. I know I need to eventually build an outline of my book ,but I get overwhelmed. I have ideas on my characters but I don't really know how best to get them out in writing. Does anyone have any advice on an helpful character outline they find useful to use in writing? And maybe some useful tips on how to go about making an overall outline about a book in general, and where to go that helps you go from it just being an idea in your head into an coesive story?.