Thank you for sharing and I'm sorry for your loss. It has been many, many years since I trained, but I know that a number of times during that training I was ready to toss in the towel and give up!! I don't know why I kept going but I did - and now I have 26 years of working in a profession I love. It has not always been kind to me, but I would not have enjoyed anything else. The same will happen to you - once you're out there you will love it and especially love a particular area or specialty for further study. Go for it! Your Dad is watching on and proud!!