Menstrual cup?? HELP

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I've been reading so much on menstrual cups but I really just need a couple ladies to help me out here. I've tried to softcup a few times and I never get it right! But I want to TRY a menstrual cup but they're so expensive 😩 I know that they can last a lifetime but I'm only 17 and don't have a job so I just can't really sink that much money into something that I don't know for sure is gonna work for me... Is there any brands that you ladies use that isn't $40?? Or just any other tips in general? I'm totally lost here and I need some guidance.