What does my mom mean by saying this?

I’m gay and I came out to my parents a year ago. They once showed strong disapprove when I talked about coming out to my classmates because they weren’t ready.
Recently I talked to my mom again about this, I told her it’s depressing and exhausting takes me lots of time and effort to pretend to be straight, and I know a lot of people come out to their classmates and it didn’t spread to the parents. She replied “Okay, do what you want :( just remember it’s not us, it’s if you can handle the potential terrible response. It’s hard for most people to accept it.” (I came out to 10 friends now and their reactions are all fantastic. Showed their support and promised to keep it secret for me.)
I think coming out brings lots of relief, joy and mature to me, and I would like to come out gradually until people around me know. I think if I respect myself enough people will show their respect (and if they don’t, then there’s no need I care them anymore). and after coming out, I can live freely and be the real me. I think this would save a lot of explanation or effort to try to pretend to be someone else.
About this conversation between me and my mom, I don’t think she meant she’s totally okay with it, did she? I’d like to come out to more people around me but I’m not sure I’ll expect them to keep it a secret, should I go ahead, or should I wait until it’s totally okay with them?