How I find my motivation again? I started training because I was depressed. I got after 1 year good results but after I broke my arm and I didn't had time for training. So I became lazy, I tried pushing myself but I get sad, because all I had I lost it. So how I can push myself to find the motivation of going to fitness again?
Creating a "habit loop" can basically train you into keeping a habit, and it works great for things like working out. The loop would start by cueing the behavior, which means something like putting your running shoes by the door where you can see them. Then you have to take action by actually going for the run, and once you finish that you get to reward yourself in one way. When there is an extrinsic award in place, your brain really latches onto that concept and doesn't forget it. When your brain remembers that there is some good involved in following through with the habit, then it makes it a lot more likely that you will stick with the habit at all. Eventually you might start to realize that the workout itself is actually the reward, since it's going to be what's really making you feel better. Especially once you start to see and feel the difference in your body and your progress at the gym. It's pretty much impossible not to start to notice differences in your physical performance once you stick with a routine, even if you aren't trying to track it specifically.
Motivation is ephemeral, one day you'll be super motivated, have plenty of time and going to the gym is easy.
But that will change. There will inevitably be days where you'll see it as a chore to complete once all other chores are done.
So, you cannot and should not rely on motivation alone, or you will fail.
Then what is left?
Make a calendar. Three times per week you'll set up times for when your ass belongs in the gym, and nothing short of pestilence, cholera and ebola can prevent you from going. You have to make this your habit, a habit you'll cancel other plans to do and always set first. That is discipline, and if you have what it takes, you will be successful.