Can we expect Bitcoin and other types of coins to have good prices at the end of this year because 2018 will end. I'm starting to worry that next year will experience the same thing 
There's usually a bull run at the end of the year but I wouldn't count on that. The crypto world can be quite unpredictable but then again this is what makes it so utterly interesting. It's always fun to be around IMO. So worry not, the next bull run will come. Do not hope for it too hard and you might find yourself pleasantly suprised soon.