Yeah bieng optimistic is really good and it reflects a lot of positivity in our mindset.
2017 was great for bitcoin,
At the start of the year it was a mear 1000 dollars and now we all see it has reached such great heights.
I I ink by the end of 2018 bitcoin will reach 200000 $
Also altcoins like ether may reach 10000$ benchmark by the end of 2018.