The Austria striker wants to be part of Inter's trophy hunt next season.
He said, "The muscular issue this year was bitter. I was used to playing from the start and playing in all the matches. Then I had a different job and I came in for 15, 20, 30 minutes. I had to find my way and adapt my body.
"When that happened, then I got injured again, but I'm happy to be back playing from the start. I have won almost everything, I have another year there and I still have a lot to do.
"Growth on a character and human level? I have improved as a person. Football is a question of talent, even of body, but the most important thing is mental. The last year has been very challenging for me mentally. I got injured twice.
"The Italians said: 'Why are you bringing Arnautovic? Is he always injured?'. I didn't get injured often. I had bone edema. It's not an injury, it's stress."