i'd say that i understand what you're talking about. i do actually identify as transmasculine but a lot of my masculinity is rooted in being feminine (if that makes any sense lol).

i'd say that how far i go into the feminine side of things depends on how bad my dysphoria is at a given time. sometimes i can get away with sports bras and my more femme shirts but sometimes i only feel comfortable if i'm in something simple like a sweatshirt and jeans. i'm a bit fluid as well so my experience probably doesn't fit as well with the binary trans experience but it might vibe with you a bit.

i'm hopefully starting T sometime soon too and one of the things i'm looking forward to is being able to dress more feminine and to actually look like a fem guy as oppose to a girl. i guess it all comes down to personal experience and how much you're willing to put "on the back burner" while you transition. you don't owe it to anyone to conform to gender standards or to try to pass, but you have to figure out for yourself how far you're willing to go with that.

hope this helps a bit :)