I feel like I have a somewhat deeper understanding of Japanese people now

Lately (as in the last few years), I've had this issue where I get "r"s and "l"s confused. Like, I'll be rolling along speaking English, like I've done every day of my life since I was 2 or 3, and I'll say "r" where I should say "l" or vice versa. I don't totally get why, but I think it has something to do with Japanese, and having sort of trained myself to think of both of them as the same and somewhat interchangeable in some situations. But I really don't know. I wonder if anyone else has ever experienced this.