Currently I have less than 5% of my personal wealth in bitcoin, and since Im not that wealthy then that means I do not have a lot of BTC, but I plan to put at least 20% of my wealth in five years
setting your time frame and trying to achieve it from time to time will make you succeed in bitcoin investment just don't use it while saving it keep buying btc and wait till the price rise up more, but don;t put everything on it as we new many things can happen especially the movement is keep on fluctuating.