Hi Lesnik,
A big Aussie welcome to Susan's family. Being TG is such a vast and Miltie dimensional sphere to live in, there is nothing at all wrong with you. You are certainly not insane by any means. A therapist would be a good idea though. May help in making sense of some of your thoughts in a balanced and meaningful way.
As you are contemplating telling your partner later, be sure you don't leave any tell tale signs about. Empty drug packets, open browsers etc. There a heap of things that could cause suspicion. Whether this sits with you well or not is your decision. You may wish to think about how your partner were to find out by mistake. How would a breakdown in trust affect your relationship.
I know my stealth, even though for a supposedly good ulterior reason, destroyed whatever trust we did have. But that's another story.
I assume you are under medical supervision for your HRT? As for your work situation, you may need to check the industrial legal system in Switzerland regarding discrimination in the work place, and see what is available regarding education programmes for the uninitiated.
Look forward to hearing more about you in time to come, but in the meantime, be safe, well and happy.
Lotsa huggs
Catherine