Learn English – word for re-engaging in a habit one used to have

single-word-requests

I'm not sure there is such a word, but I'm looking for a word, which expresses the intention or execution of re-engaging an old habit, which one used to have.

For example, if Joe used to play piano daily in his twenties but lost interest due to lack of time after starting a family, is there such an expression, that Joe can say "I used to play piano daily a long time ago and plan to * this habit soon again" (where * is the expression I'm looking for)?