When I was a kid I used to watch Dragonball Z and Yu Yu Hakisho. I liked DBZ better though.
As an adult Gurren Lagann, hands down. I also really like My Hero Academia and One Punch Man.
Hell, I Liked Gurren Lagann enough I got their symbol tattoo'd on my shoulder. As ridiculous as that probably sounds the show did a lot for me. When I began watching it I hadn't yet grown up I mean I was technically 18 but I wasn't grown up yet. I was really shy, timid, not insecure but I had no faith that anything would work out for me in life. That show made me realize that you've got to have faith in yourself and sometimes you've gotta say "fuck it, I've got this", if nothing else through force of will. Within a month of finishing the show I had moved out of my parents house, got a new, better job, bought a car and got the tattoo. I haven't looked back since. Nowadays I'm happily married with a full time job with great pay and benefits and my wife and I intend on having kids next year. I'm in a good place in life right now but without Gurren Lagann making me have those revelations I may not be here right now.
Take away: Draw inspiration from wherever you can, people, books, movies, giant robots smashing the hell out of each other, whatever if it helps you get to where you want to go there is no shame in it! *mic drops*