Will say this, Elsa..
Have been where you are, and might find myself there again as time and transition moves forward. There is no one size fits all solution that alleviates the bowing under all the stresses and strains everyday life can burden you with, much less those things specific to us, here.
I found talking to people, in context on my transition or not, was stunningly helpful. They didn't have to "get it" or offer sympathy or pity to assuage how down I was feeling, just be good listeners and good humans.
It may seem trite to just say, "Hey, talk to folks, you'll feel better!" and I don't want you to think that I'm taking the place you find yourself in lightly, at all. Being able to open up and scream, yell, vent, bitch, rage at things to someone can make a huge difference. Sometimes getting it out is enough to put all of the various things into new or slightly shifted perspectives.
Another thing I did that helped was to ration my internal resources. I told myself that in a 24 hour period of time, I only have so much inside to expend on things, physically and emotionally. I found that if I asked myself "towards what end am I spending my daily allotment of internal resources?" when things started to freak me out, that it make it easier for me to not focus on those things that I could take no action on, and really apply my efforts to those things that I could. To make them better. Once I made asking myself that question a habit, the "can't do anything about" category suddenly took on a far less menacing posture in my life.
Nothing will make every worry, concern, fear or doubt go away, but there are things you can focus on every day that help put those things into a perspective that allows you to move ahead with more smiles than cringes and not feel like you've been hit by a ton of bricks when things may go slightly off the rails in life.
Will be sending good thoughts your way, and I hope things get better for you soonest.
-Miki