[PleasantlyFascinated]

The way I would advise is to be aware that you'll very likely find it very addictive, particularly as it is linked to sexual arousal.  It is a likely prediction that you'll gradually use more, which can eventually lead to permanent changes in the breast department.  You'll want to assess what gender fluidity actually means for you, in the long run.  A lot can and will change between age 28 and 58.  You'll want to accurately predict what your body image needs to reflect, for the life you want to lead.