Converting to muslim?

Hi m 24 looking for some advice I guess, my girlfriend 27 f is Muslim and obviously so is all her family I was brought up away from this type of culture but now that we have been together for 3 years I want to meet her family but I can't do that and her family doesn't want anything to do with me until I convert and we get married, I guess I'm just wondering if anyone has any advice on converting if they had done it before
Converting to muslim?
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