About deal breakers: be up front. Don’t hide stuff. What’s a deal breaker is subjective but things like having a kid already.
In regards to this, if you put your deal breakers on your profile and they're "young kids and dogs" 99.99999% of women will not be interested. I tested it and only after removing that stuff did I ever get likes and a small handful of replies.
Needless to say, 10 years later and I'm still single lol