I just finished up a Master's in Computer Science. It took 5 years; my initial advisor died and I had to find another one to step in. I went deep into debt (no funding) and finally switched over to a part-time study while I worked full time. Unfortunately, it was just that point when the real research was ramping up. I remember nights where I would be falling asleep as I crammed my code in to see it work. Then more n…
It's a myth that you require to be "smart" to do a Ph.D. You just require few basic skills, a good supervisor and persistence. You are good to go! Here's a quote which is another version of what you said and you will realize it's exactly the same. If this person could do it(with wide spread fame) why not you?
It's not that I'm so smart, it's just that I stay with
problems longer. - Albert Einstein