UAV first time problem

can anybody tell me what’s wrong with my uav?
my uav is build with APM.
when i try to fly up, it fly up and fly to some direction by itself.
sometime it circle for an angle on the ground.
i test the compass accelerator and RC, ESC for many times.
thank you!

Might help if you have a video of the problem to show. What multirotors are you using?

the multirotor is quadcopter, with APM.
how to show video in the forum, thank you!

You will need to first upload to youtube, or another vidoe sharing website, otherwise you can attach photos to this forum