You can ‘commit’ to as much as you feel you want or need. I offer a 6-week or 4-month package. Both of which can be renewed.
Some clients feel the 4-month package is sufficient and renew when a need arises. Others, especially those working towards goals, tend to continue indefinitely.
Personally, I believe everyone needs to have a Life Coach all the time. You never know when an issue will come up (family fight, unexpected decision, or stress) and it’s calming to know you have someone neutral to speak to about it.