Hey there! Thanks for posting here. I hope I can be of some help.
Clothes and accessories can make people feel very different about themselves. It may make them feel empowered, bold, and confident, or it could go the other way and make them feel diminished and ashamed (which, honestly, some people like). I think it's great that you've found something you are comfortable with. You are not alone. There are many men who enjoy wearing women's clothing; it's just not necessarily widely talked about, due to the taboo. If the clothes make you feel happy, then by all means keep wearing them. There's absolutely nothing wrong with that.
As for whether that makes you gay or not, sexuality is a broad spectrum. Very few people are 100% straight or 100% gay; most of us fall somewhere in between. I would say your desire to be dominated by a man may mean you aren't completely straight, but it doesn't make you gay, especially if you still desire sexual relationships with women. You may be more in the bisexual range of things, and that's totally okay.
I hope this helped. Feel free to
PM me if you need anything.