Sprache lernen im Vorübergehen!
The brain is not a muscle that can be trained by repetition and practice, because only what is really important to a person, what gets under his skin, sticks in the brain. Only in this case are the emotional centers activated in the brain, which acts like fertilizer on the nerve cells.
Many people, however, orient themselves too much to others in their learning and do what others are interested in, so that they can, for example, have a say and belong. But a person who is occupied with what interests him personally is a person who is at peace with himself.