Hi! Indeed! While you can still use Magento 1 for as long as you want, the platform will no longer be supported and no security updates will be issued. There is no point in waiting until that happens. Planning, implementing, testing and deploying a migration to Magento 2 can take a substantial amount of time.
The earlier you start, the more time you have to get everything right. I've worked with a team of Magento developers. They provided me with step-by-step guide and gave me a lot of recommendations. Check their blog for more info https://elogic.co/services/magento-2-migration/