Last tip is to relax, if the distance between the two eye pieces isn't exactly right, trying to force it (tensing up) just makes it worse. Relax and deal with it, kind of like shooting a shotgun with both eyes open, it can be a leaning curve.

The more you do it, the easier it gets.

Remember your diopter settings, so you can quick check them occasionally.

I use compressed air (air in a can) to clean the majority of the dust off of my lenses, then I use eyeglass disposable cleaning tissues for a finally cleaning. You usually keep Binoculars for many years, those tiny scratches from dust add up. IMO don't get anal about cleaning the lenses, a little dust is better than permanent scratches.

When they really help out is when it is cloudy and overcast and still dark as heck, but is the legal time to shoot.