You can probably go for more bitcoin if you can afford to do so. And by saying you are in late 20's do you mean to say that your current age is running between 20? If yes, then I am sure you would be having much less responsibilities and you might perhaps be dependent on your parents.

This would not carry any hectic financial loads for you and you would be free to invest as much amount as possible because you do not need to worry about the loss. Even if you land up in loss, your parents would be your backup to cover it for you so you can invest the amount is possible for you. Also investing in early ages might make you a billionaire soon in the coming times as investments would always make you rich if you have the ability to choose a appropriate investment for yourself.