I bought ethereum since May and June 2017.Got in @120€ and 275€ and my capital has doubled since. I'm really long on ethereum but i was thinking about sell a little bit to diversify my portfolio because for now i'm all in ethereum or sell everything to buy the next dip but i am not sure it will worth it or switch to bitcoin.
What are your thoughts on that ?
If you could manage to make doubling for your capital, please don't destroy your chance. You caught the trend from a good point, and then you need to maintain this. Stay in ether and don't move your funds to bitcoin.