My Solo Sessions Are Getting Intense

I'm in my early 30s, single, and not looking for anything serious right now. I've been getting into some pretty intense solo sessions lately. It started with just imagining scenarios from my past relationships but has evolved to incorporating more vivid and explicit fantasies that border on taboo or forbidden territory. Lately, the fantasy element feels almost too real, and it's hard to tell when it stops being a daydream and starts affecting how I view people in my life now. Is it normal for your mind to drift into such intense territories during solo time? Do you ever feel like these fantasies are impacting your reality or clouding your judgment about the present? I'm worried I might be taking things too far.