I have only read your front page and bits and pieces of the other posts, which are all very much in line with what I think.
I was told not to worry when diagnosed........you will die of 'something else'. I now make sure I am wearing clean underwear every day in case the 'something else' is a Double Decker bus.
Naturally it's a concern that my future may be hindered. The most important thing is adjustment to the condition you find yourself in at the time. For example you are unlikely to want, or be able, to run a four minute mile when you are 95. So we adjust and watch people run a four minute mile and have happy memories of trying to do the same.
We all get frustrated, that's human nature. This is why this site is so very important. You can let it out to people who understand and will probably have encountered the same situation.
Plan tomorrow and the rest of your future will fall into place. If you are struggling, seek counselling from professional sources.
My parents are not here to witness my demise, the chances are your's wont be. If they are, they can get help for you, if you need it.
I fully agree with Turnip.......Get a grip. Giving in is for wimps. The ladies on here have the backbone to do it, surely you can look to them for an example.
I have had two friends commit suicide way back in the past. They have missed out on 30 years of fun. Don't even entertain the thought.
Morph.....life's a gift, take it with the good grace it was given.