Need to vent, and advice

So I got a positive FRER and digital at 12DPO. Seemed promising and pretty robust for being early. But I haven't seen any line progression since. I'm now 15DPO and the line looked fainter today. Sore and swollen boobs starting to shrink down and no more symptoms (was having some very mild nausea, dizziness, reflux). So I'm definitely out, CP this time. Anyone else experience this? I just want to start my period and reset the clock. This is a crummy purgatory to be stuck in, waiting for a period. It feels like I'm just wasting precious time right now, even if it only ends up being a week or so. How fast did you guys get back on cycle after a CP?