I would say just get out and use it.
Make sure you set the film speed at the same time you load the film.
Concentrate on one thing at a time. Use the auto mode and get used to adjusting the focus and the shutter speed first. Move on only when you are confident you have both under control. Take your time with each shot.
Get into a routine: wind the film, frame the shot, focus, adjust the exposure, fire the shutter. Rinse and repeat.
Remember the viewfinder is above the lens and to its left. The image on the film will be shifted in the opposite direction and so if you centre your shot perfectly in the viewfinder it will be offset slightly on the final print. Many people learn how to compensate visually, but in the mean time move a little further away from your subject so that it is smaller in the viewfinder. That way you get the chance to crop the scanned picture back to what you originally intended in post-processing.
Take the same pictures on your mobile phone so you have something to compare your analogue shots with when you get the scans back. Use an app like 'viewfinder' which will allow you emulate the lens and film you are using. Take the time to compare each pair of images which should help you discover any idiosycracies with the camera or your technique .
Have the film developed and scanned commercially (to take out one set of variables) and check the results before moving on. That will tell you:
- if the camera is basically working in terms of exposure, focus, light leaks and film advance.
- what you understand about the use of the camera and what you don't
Post one or two images here. Ask questions.
I hope something of this helps. Enjoy your new camera.