There are no easy answers here. I'm indulging myself with crossdressing and occasionally with pornography.. BOTH of which offer comfort to me and neither of which I characterize as addictive. Honestly, I've never been able to sustain an intimate relationship. My needs were not of the sort that would make relationship easy. I don't interpret that as evidence I need to transition. For me that is another fantasy I'm not willing to pursue. I don't know what is true for you... but you have a daughter and, in my opinion, it would be good to do whatever you can to sustain THAT relationship. I think the suggestion you should talk with a therapist is a good one, but I definitely wouldn't frame this as an issue of gender dysphoria. Yes, that may be at play here but it is possible other things are involved. Again... there are no easy answers here.