Lost all my data

I got a new phone a while back and lost everything I had on my old iPhone. I have been trying to recover my old account for months but no luck. I really dont want to start over from the beginning because I had a lot of time and great characters on there. If there is any way I can get it all back that would be great. Please and thank you

Carlos Partida about DRAGON BALL Z DOKKAN BATTLE, v2.15.2