Bitcoin and altcoins are fluctuating and it is normal to be this way. I think after a big decrease will come a bigger increase...and so on
Is it serious? Have you ever seen how much the market has fallen this year? And its growth is likely not even this year. If at the end of next year the market goes on the mend it will be very good. Such comments, like "the cryptocurrency market is volatile and this is normal" should not come from a member of your rank.