Is this a good strategy?
I got this strategy from my friend
I think you meant to pump it and then sell everything. It's not a good strategy + it's a dishonest way of earning something.
Care to share who's that friend (his/her profile account on this forum)?
Just like the OP wants to hype the market. In the first place, it won't become easy for you specially if there is a bear market season. People are not anymore an ignorant, in fact there are many tutorials that people used so that they will skip this kind of scheme to the market. I don't think the OP can do it today.