Some Useful Tips:

-Learn the basic shortcuts to save time

-save your work frequently(ctrl+s)

-Use the undo function (ctrl+z) when you make a mistake

-Organize your workspace with the n-key to access the properties panel

-Use the tab key to switch between object mode and edit mode

-Use the outliner to keep track of your objects and their hierarchy

-Use reference images to help with modeling and texturing

-Use the snap function (shift+tab) to align objects to the grid or other objects

-Use the proportional editing tool (o-key) to make smooth transformations

-Use the sculpting tools for more organic modeling

-Use the modifiers to non-destructively edit your models

-Use the node editor for more advanced materials and compositing

-Use the grease pencil for 2D animation and storyboarding

-Join online communities and forums to learn from other artists and get feedback on your work

Simple key shortcuts