Lash serum journey

I am someone who suffers from OCD and part of it is pulling out hair and lashes.. (only with mascara on in my case)

The before picture is just awful. Which is when I started using a lash serum (uklash at first). I have always had hooded eyes and I didnt care about loosing orbital fat, as I wanted more open eyes.

The after picture is a year later (nanolash now). The length isnt as drastic, but the volume I have now is insane. I cannot recommend a lash serum more. I still sometimes pull my lashes, but less, because honestly they are so beautiful I often catch myself doing it and stop.

But I am on the last drops of my nanolash bottle. So I am wondering what lash serums do you recommend? Which are preferably under 50$ (just pls not the ordinary one)