Every couple weeks?
How about daily? Or perhaps even when the sin happens?
Confession is actually a pretty important part of prayer. Part of drawing near, so He will draw near to you.
Part of the problem is that when we talk about confession some think that’s the only way we pray about our sins. It isn’t.
Yes, certainly, at the end of the day. An optional part of “night prayer” is a little “self-exam” and prayer for forgiveness.
Yes, certainly at the moment we notice the sin.
A “rote prayer” or an extempore prayer expressing contrition and asking for help are common practices.
Aside from anything else, we pray so that we can pray more until every moment is a moment of prayer. We want to live with IHS, and we may!