Now I am confused and that I should hold it or do short-term trading to get the chances of earning little by little?.
(My knowledge for trading years ago is a rookie/newbie and still is until now so if everything is nonsense enlighten me)
If you have almost no experience in crypto trading, do you think it is wise to start gambling with your crypto at the moment? The chances of losing are much higher than the chances of making a profit, unless you have beginner's luck that can happen to anyone. However, if you want to try, listen to the advice of mk4 - allocate a certain percentage of what you have in crypto/what you are willing to lose, and try to profit from it.
Do you believe in those predictions? Did the predictions for market price come true most of the time? did you use it for trading? or not?
You cannot base your investments solely on speculation, especially the short-term ones you are talking about now. I believe there are people who know what they are talking about, but they give long-term predictions about what will happen to Bitcoin in 3-5 or maybe 10 years considering its past performance and what Bitcoin can achieve given its potential. Of course there are a lot of unknowns in that equation, so one should always count on possible surprises - who could have predicted a pandemic 2 years ago, or something bad that will happen in 2 years from today?