it's pretty late to just throw your money at anything and make a huge profit by just holding I think.
But there are plenty of diamond in the rough projects to find out there to make huge gains on.
you just have to know where to look
Its never too late if you are going to throw your money to bitcoin. Just don't hope with huge profit is about to come quickly but if you have patience and the amount you invested seems to be highly competitive amount then expect for the best with the upcoming years. Halving would come after 2 years so that's a great even that will surely effect the price positively.