What happened With Bitcoin Now a days?

i bought 1300 nexo token to price 30 cents , i watched the youtuber video and was very sure token will do profit but after buying token price day by day going down and today price is something 10 cents , i spent at least 600+ USD and now youtuber not answering me 😄 i dont want to mention him otherwise he will be more popular 😑 and now a days all alt coins going down👎 . i just dont know what is going on exactly!😠 i do hold or just sale out?
this is today marketcap 👇

and then when i see December 23rd 2017 A crazy day to remember?

Seems Like a Dream. 😖 anyone can give any suggestion so please comment and tell me and i specially request do not give me suggestion like paid youtuber who smile and say ''This is not paid Promotion'' and they do paid promotion and lie to each and everyone just for money. so if you are like this person so respectfully go away. i did trade by myself in RDD coin i got 100% profit , but in the nexo time i first time feeling like i am going to loss . its my internally feeling. i read bunch of youtubers chart about btc and other coin up and down candles but now a days it seems everything is useless. whenever any youtuber post a video they mention if you lose money or anything bad happened this channel is not responsile! this is like you are giving someone anything bad for eat and then you tell them you die or lost i am not responsible. my question is if your prediction is not good why are you playing with people , just stop this nonsense! no one asking you about coins they say! and use attractive words and make people greedy .