Start slow and build up from there, especially if you’re new to fields.
Most of the fields have listening suggestions in their description (on YouTube as well as in the top posts of the fields’ threads). For those fields without specific directions, be guided by the Official Sapienmed FAQ (Updated), which explains this information.
tl:dr: A good general rule of thumb would be to listen to each of those fields (in @Star’s post above yours) 2 times each (then go on to the next field), doing that maybe 2 or 3 times a day. More is not “better” with these fields.