Until this last maiden flight, I had one of the club instructors take-off my new creations and trim it out/evaluate it. After that, I did the trimming. A few weeks ago, I did my first ever own maiden flight on a new airplane..a H-9 Ultrastik 40... even then, I had one of the instructors standing beside me. I'm glad I did.. it turned out to be a lot quicker and more sensitive than I had anticipated... and it needed trimming out too. I got it airborne and then asked the instructor to give me a couple bumps of elevator/ rudder/ airleron etc until it was flying hands off.

If it's a new airplane, especially if it's a "step up" for you, there's no harm/shame in asking for help. Part of the secret of being a good flyer is knowing when you're in over your head.