Offer your thoughts or opinion on the input financial query or topic using your financial background.

Is it unreasonable to double your investment year over year?
I know it may not last longer but i was able to 2.5x my wealth over last 2 years.(2016, 2017 cont) I was successfully able to convert 70k into 452k in 21months. Now at this amount, I am really worried and want to take all the profit. I agree that I have been lucky with these returns but it was not all outright luck. Now my plan is to take 100k of it and try high risk investments while investing 350k in index funds.