Im down 15% and it’s okay for me, but I’m selling in 1.5 years for an event and I can’t take another 15%. Sell now?

So i started investing because I've found that to be a really good way to kill my spending habit. I'm down 15% after 7 months and if I hadn't invested I'd probably be down 50% spending it on useless garbage. In light of that, 15% red is an actual win. I'm moving in 1.5 years and although I'll make twice what I have until then I dunno if I should just sell now. Sucks that I can't afford to watch it burn and then watch the climb without feeling like it won't happen fast enough until I'm moving but I'm trying to see what should my mental be here. I have money in big tech and I generally treat this as a hobby without much hopes.