yep i know the feeling - you will also feel like "i knew it would increase and so why didn't i buy more when i had so much opportunity to do so"

instead i wasted money on x

and missed out on profit y

which i could have bought z with

the feeling only gets stronger as the value of z goes up as BTC increases

some people say that you should only put a small % of your net worth into BTC because of the high risk but i believe there will many people around which are early adopters but won't get to capitlise on being an early adopted as much as they could have if they were just willing to risk just a little more..