[naiquevin]

> when I practice for more than an hour every day

> this creates horrible calluses on my fingers

I think both are good problems to have :-). Consistently practicing for more than an hour every day is quite difficult unless you are professionally into it. If you are able to manage it then that's commendable. And once the calluses are formed, it doesn't hurt as much. A downside of skipping practice for a week, besides the practice itself, is that the calluses go away.