Interesting that you should frame your question including YEC, OEC and EC, because that pretty well describes my personal history, now that I’m a heretic (according to many YECs) 
, except that I have picked a label of ‘evolutionary providentialist’ to apply to myself. If you poke around here a little, it won’t take long to discover that I am all about God’s providence and that he is a loving Father. (You will also find, to my chagrin, that I am not spontaneously gracious and that I’m quick to return insult for insult and that I don’t take well to condescension. 
)
Some of the evidences for the antiquity of the earth are quite remarkable, and I would even call this one about girdled rocks fun (it’s also a favorite of mine because it includes a reference to God’s providence):