Look we've all been there - even me!!!
Yes I first transitioned in childhood. Yes I had the full support of my family. BUT back in the 1970's doctors could be a different matter and hence my transition went 1.5 circles - age 5 to female, aged 17 back to male, and then aged 24/25 back to female again... the gap being caused by puberty with no blockers available, and my reluctance to be an obvious bearded lady!
So in the mid 1980's right in the middle of the massively intolerant Thatcher/Reagan era, and as an established engineer working with a bunch of very male engineers - I faced coming out and transition.
YES it was tough - SO tough in fact that I dont talk about it now because none of you would ever believe what I had to find ways to overcome... but I wanted to do it. I knew it was right, because I'd lived the childhood, and so I applied my mind to working out how to get through it, and I did.
There comes a point where you just have to take a risk and jump. As for suicide - there are two options - you either try to transition, in which case experience tells me it probably wont be as bad as you imagine, or you do something silly, and then with your dying breath you will surely wonder what would have happened if you had only tried. Thats a horrible last thought to have. Imagine realising in your last seconds of life that YOU COULD have made it. I can almost guarrantee that would be what would happen.
So lets get back to actually doing something positive. You may imagine its all too difficult and impossible, but my experience tells me that a.) its 1000x easier these days than it was 35 years ago b.) that it wont be as bad as you imagine, and c.) that almost everyone eventually looks back and thinks "well that wasnt so bad after all."
The other thing is you have a degree and you work with educated people. In my experience the ones who have real trouble are those who have no education and work in menial jobs - because often people in those situations can be very direct and rather intolerant - in a white collar environment - as long as you play the game and continue to perform, they will be much more forgiving.
so do your homework - check your prospective employers out, find one with a good equal opportunities and welfare record, then get that job and go for it. You will feel better when you actually start to do something. Remember one cannot steer a stationary vehicle...