How do you deal with the stress of watching your portfolio drop?

I didn’t think I’d react this much emotionally, but even small dips mess with my mood way more than I expected. Like I’ll open my portfolio just to “check real quick” and suddenly I’m staring at it for 20 minutes trying to convince myself not to panic sell. I know in theory it’s all part of the market cycle, but it still feels bad seeing numbers go down, especially when it’s money I actually care about. Do you just get used to it over time, or is there something you actively do to deal with it? Like do you stop checking, set rules, or just mentally detach somehow? Would honestly appreciate any advice because right now it feels way more stressful than it probably should be.