Thank everyone for your answer.
Just to know: delta or blackfolio show the price from a specific, chosen exchange or from coinmarketcap?
i'm wondering which app do you use for tracking price and amount of your coins?
I used Blockfolio first, but then deleted it after a while. It annoyed me that there were always disturbances.
Sometimes the app could not establish a connection to the server. No matter how many times I have updated.
It was not my internet connection.
Then I used Delta. I found this app very good. I like how the prices are presented.
The app was also very well structured and very quick to understand. I have no connection problems with the app.
Now I no longer have an app on my phone because I do not want to be distracted that often.
I do not want to pay attention to the prices so often. They fall and rise anyway they want.
I have no influence on that and it would only drive me crazy.
right now i still can control my self and not check the price too often, but maybe in the future i will do the samething that you do