Migrating from CloudFlare to Fastly

Hello, I’m a bit new to Fastly but very excited just have a number of questions.

Currently we have CloudFlare setup so I was told you can use/utilise both with CloudFlare doing the DNS as example.

So my question before we migrate is…

CNAME will be set to Fastly as per instructions via CloudFlare but do we keep CloudFlare ON or do we turn it off/pause?
Do we keep the dedicated SSL we have with CloudFlare active on CloudFlare?

I’m just a bit lost as to who points where and how so any help or advice to help me along the way would be appreciated.

Thank you!