For me, it was learning English. Although I do make a few mistakes here and there, I’m mostly perfect on it.
The amount of resources you have access to dramatically increases when you know a universal language. I say dramatically because it made me realize how much my native language lacks when it comes to certain topics. The most obvious one to me was tech and computers. Everybody knows how to use Windows but there are very few resources about stuff beyond Windows. It’s actually sad. [insert sad face here]
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I realised a relationship was doomed when I had a pregnancy scare. I was overjoyed when I got my period, and he told me he was sad. The man already had 3 kids by 3 different women, none of whom he saw, and I was like wtf how does he think I’d have a kid with him?? We broke up not long after. And every time I see him around town I thank my lucky stars I didn’t get stuck with him, as well as embarrassment I was with him in the first place.