Here they go!!
Try to draw in big scale, this will give you the ease to enrich your art with details.
Use references, the more you needed them, the more your art could helped you look more realistic.
Have confidence, if errors happends on your piece, is fine, is part of the process.
Always experiment, sometimes it more interesthing as well you will learn more techniques.
Draw constantly even if scribbling, like they said "practice makes perfect", this will improve your skills as well pick up efficeincy on time (drawing faster).
Inspire yourself, what ever makes you motivate do it!!!
Draw lighty on paper, this will help you to erase easily and as well work looks cleaner (remember presentation matters)
Challenge yourself, sometimes this can cause struggle but it will helped you improve overall!!
HAVE SWAG... Okay maybe not this one is no needed lol.