Can I change my investment plan later?

Absolutely!

For Web App users:

Simply log in to your Account > "Investments" > "More option" tab > click on "Edit portfolio".

Make changes to the portfolio as you wish by moving the slider and finally, click on "Confirm" to update the portfolio.

For Mobile App users:  Simply log in to your Account, select "Your portfolios" > click to the 3 dots on your top right screen and select "Adjust risk".

Make changes to the portfolio as you wish by moving the slider and finally, click on "Confirm" to update the portfolio.