I'm not out either, but yeah, some moments I did feel that way, yes. Just because I don't 'fit' in some typical trans or male stereotypes.
Sometimes I felt like I HAD to be a generic cisguy, or a generic transguy, in order to be 'valid', which is total BS of course. I am who I am, and that person appears to be a guy, regardless of my body or 'mental programming', etc.
No, I never tried to kill myself, nor did or do I have crippling dysphoria (but then again, I'm really not girly. I think my body is more or less androgynous), but when I set aside all problems, fears, doubts, difficulties, etc. of being trans and then ask myself whether I feel like a man, and would want to be one physically, the answer is a radiating "YES!".
You know how transpeople are often described to cispeople as 'being trapped in the wrong body', and to a certain extent that's true. But it's oversimplified! I WISH I was a dude zapped into a girls body, frankly! 'cause then I knew for SURE what I was, I wouldn't have any doubts at all, etc. while now I go through periods of thinking I'm totally, utterly, NUTS. That I'm making life harder than it has to be, and am fussing about nothing, that I must be crazy for thinking and wanting this, etc.
For me, and I think many other transpeople too, the difficulty of changing your body is actually rather small to changing your mental programming or other kind of sh*t I can't really put under words.