I've often heard it said that gender is a social construct. I'm still not convinced that's true. I will accept that gender roles are social constructs. I don't necessarily have a problem with those who adhere to "tradition," provided that they've examined these traditions and make a conscious decision to embrace them.
For example: I became a husband and father at age 19. I made a conscious decision to accept the roles of husband and father and do what I could to support my family. That said, these were in some ways superficial. My (then) wife and I didn't have much for gender roles. I was not threatened when she made more money than me, and I loved cooking dinner and doing "domestic" stuff.
For years, decades, I had self-esteem issues. These were, in a way, tied to gender roles. I didn't like sports, I'm not fast or strong. As a boy growing up like this in the 1970's and '80's, I found this to be very stressful. It wasn't until I was about 40 and I began exploring just what my gender identity truly was that my self-esteem began to improve. I began transitioning at age 41, and for the first time in 30 years I had consistently better self-esteem.
Shortly thereafter my wife of nearly 23 years said she didn't want to be married to a woman and said she wanted a divorce.
If I had owned a gun, I would not have lived through June of last year.
In September, we celebrated our 23rd and final wedding anniversary, and my self-esteem has been a roller-coaster ride ever since then.
It's been two months since our divorce became final. On Ash Wednesday this year, I decided that I'd give up self-loathing for Lent. Let's just say it hasn't been one of my more successful Lenten fasts.
I don't think that low self-esteem is a sign of weakness. I think it's something that happens to us, and that it can be influenced by external factors.
If you believe that gender does not exist, then that's what you believe. I believe otherwise. That doesn't mean that one of us is right and the other is wrong. I wouldn't say that gender roles don't exist, but they are (to me) constructs.
Questioning one's identity (gender, sexual, etc) can be a stressful thing. At least, it has been for me.
Hang in there. We're here for you.