Bitcoin price growth is basically guaranteed by its scarcity. There was demand for Bitcoin before Elon's tweets, there was awareness also before Elon's tweets. So what did Elon change? Imho nothing.
Newbies would come in anyway because of the bull run and the idea of easy money is always appealing. Some will understand Bitcoin, some will not. Some will profit, some will lose. And all happens with or without Elon's tweets.

So just try to understand Bitcoin (DYOR) and invest based on your knowledge.
And keep in mind that even though this or that is public figure, his declarations are not made for you to profit, instead it's for them to profit.