bitcoin go up over 8k today after went down deeply 6k just few day ago, very good new. Is it a right time for us to invest bitcoin and wait 2,3 months when its price go up stronger. Pls share your thought. I really need some good advice 
Yes it is. If only I have money I will buy many bitcoin as I can. Because bitcoin really gives an income. When bitcoin price went down, I choose to stay and keeps my bitcoin. I hope that before the first half of the year, bitcoin will goes back and renewed its strength.
I would recommend purchasing any additional coins only if Bitcoin represents less than 20% of your portfolio. On the other hand, if the majority of your wealth is in the form of crypto (as in my case), then you should seriously consider about diversifying.