Insights, feedback, input, comment... something... anything!!!

So I don’t understand the whole temping thing. Can anyone look at my chart ... how is the cover line determined,

I got a bfn so I u sweat and I can expect Satan’s waterfall any day now... but what is a “successful” bbt temping trend vs a non successful one? What are the average temps for pre ovulation, ovulation, post ovulation, implantation and pregnancy... omg... I’m now dizzy... anyone?