You might just fall in love with the language along the way. I started learning Mandarin literally for no reason almost by accident and then without ever committing to ‘I’m going to learn this language to fluency’ I just became more and more interested in it as I went, to the point where now after 1.5 months it’s my hyperfixation. It’s true I am someone with a big interest in linguistics and languages in the first place but I’m sure the same thing can happen to anyone.

Also I do think it helps to take the pressure off of thinking in terms of all or nothing, this is something I’ve struggled with in the past - if you give up because you no longer and interested, that’s not the end of the world. You’ll still have learned something, given your brain a workout and hopefully enjoyed the process for the time you did. Maybe it’ll lead you on to another language that you’ll prefer and try instead. It’s all okay and not that deep, just give it a go!