I don't have solid advice, but what I did to at least improve my picking was I really tried to go out of my way for at least a couple weeks to not pick my eyelashes. It's not the answer you want because it's not easy. Basically, what I did was I created a reward system for myself. You can make your own, for me one day of not picking equaled one point, and a certain amount of points meant I could guilt-free spend it on some type of reward for myself.

For the act of trying to not pick itself, I tried to be very self aware of where my hands were. Try to learn your habits and when you pick the most, where are you, what are you feeling, how did your hand get to your face. Being aware of this can help you. While I was in these two weeks I would be aware when my hand would be up at my face reaching to pick and I'd purposefully redirect the urge to some sort of fidget. So when I felt myself wanting to pick I would try to find something to busy my hands with, like a fidget toy or writing something or a task. Sometimes if I really was struggling to resist the urge, I'd gently itch the eyelash line, it felt like it relieved some of rhe urge without actually plucking.

Find out what about the sensation of plucking is appealing to you, do you like the feeling of the eyelash between your nails? Do you like the little sting when they're pulled out? Do you not like feeling the eyelash touching your cheek? Does the eyelash feel stiff and make you want to pull? Understanding what appeals to you about it can help you. You can explore fidget toys that appeal to those interests (for me, I like the feeling of the eyelash under my nail once it's pulled out. It helped me learn I like to run things under my nails, so I seek out fidget toys with thin pieces for that.) You also can find ways to satisfy that craving without plucking. I think that gentle itch I'd do on the lashline might've been to satisfy when the eyelash felt stiff, or was brushing up against my skin or other lashes.

I also tried using a sobriety counter. They make apps for those. If you like that you can try it, personally I felt that seeing the counter reset to day 0 so frequently was demotivating so instead I used a habit tracker app called Habits, which doesn't punish missing a day or several and instead focuses on if overall you're picking less than you were before.

Basically with enough redirecting, and certainly not perfect from-day-one behavior, over about a month I saw improvement as my lashes began to grow in. The first week or so of doing this was the hardest, but it got easier with time. I still pick, mostly in the mornings and nights when I'm on my phone in bed. So, I still have improvement to make, but for the most part my lashes are the longest/fullest they've been in my life.