RPM not recovering still in Q2

I have been with Journey since July-August 2024. During September, October, and November, my RPM reached as high as $45 and maintained an average of around $40. However, it started declining in mid-December and continued downward throughout January and February, which I understand can be normal. Currently, my RPM has dropped to approximately $14.

I've noticed discussions in various forums and Facebook groups indicating that many users began seeing RPM improvements starting in March, with some even returning to Q3-Q4 levels from the previous year. Despite it now being mid-April, my RPM remains low, fluctuating between $14 and $15.

Please note, my traffic has doubled compared to October-November. Approximately 85% of the traffic originates from the USA and other Tier 1 countries. The session duration remains consistent with, or sometimes even exceeds, last year's performance. There are no conflicts with the growth script or any other technical issues that I am aware of.

Can anyone explain why my RPM is not recovering or showing signs of improvement? Additionally, are there any steps or strategies I should consider to address this issue?