What are some things you learned going from an enterprise org to a startup?

Recently started a new gig at a startup after a few years primarily in the enterprise space. I’m used to having a lot of resources and more time to ramp, and I feel like I’m not moving “fast enough” at my new role.

If you’ve been in the startup space for some time now or you’ve transitioned from the enterprise world – what advice do you have to really hit the ground running?