Good stuff.... in addition to the above stated...
#1 tip. Breathe for yourself, keep calm, don't rush, and fight the coffee hand type jitters. If you rush, you will eventually will screw up, then you get frustrated... then you scream.
Find a handle/blade combination that you like. Practice and practice. Over and over. Intubate your partner for fun. ( well... at least attempt
). Have that MSdelta back up, that you should feel just as comfortable with.
For the 90 degree setups that most all EMS have, try holding the handle in the 90 degree joint, with your palm resting just below the blade viewing area ( don't block your view ). This sometimes helps with the over-doing the lifting, helps with wrist strain after awhile and some say they get better control of the system. ( as opposed to having your hand on the entire upper handle. )
As you enter, s l o w l y advance giving a lift to the tip of the blade allowing you to see LANDMARKS. If you don't see any, relax the tip down, go further another half inch and repeat until you see landmarks.
Some of my cohorts do the opposite... they bury the tip to a suitable experienced depth, and slowly back out with lift until they see thier landmarks.
To eachs' own, you will find yours.
Try different handles ( nothing wrong with using a peds handle on a #3 or #4 blade of your choice.
Now... this may stir debate ( but do as you are taught ), I have not bought into and never have.. with the vellecula vs blade deal. I lift the vellecula with all blades so its never an issue. Again... 20 some years of it, and that it was I have learned.
If you are into having a set for yourself... do your homework.
I spent mucho $$$ on numerous styles of blades ( more than mac or miller ) and handles, as well as some unique demos to play with.
My latest set up is a satin pediatric handle with an Grandview blade set and a 45 degree howland lock adaptor ( which are not that expensive ).
The back ups are a HEINE flex-tip and standard fiber optic set of Satin FOCS Mac blades in case the grandview does not satisfy me.
Be aware.... not all the fiber optic systems are interchangeable. The Rusch green line ( with the bulb in the handle ), is expensive, and the handles break often when dropped.
The FOCS fiber optic blades are meant to work with any standard handle ( without the light in it ). Which means, you spend a bit more for the blade, but any 'ol $20 handle will work.
( why my choice? Easy to clean, bulb is sealed back of the blade ( but replaceable ), does not get hot, and its bright )
( just options for the eager beaver out there )
May your adventures and daydreams drive your want to succeed.