I would advise being patient and not rushing ahead with things, it’s easy to want to try something difficult or impressive sounding right away, but this can bring frustration if you haven’t learned the basics first. As well as this I would have to say practising as often as possible! Even if not for very long practice sessions, playing often will be beneficial and build good habits and skills. Overall, as well I would say find what you enjoy, whether it is a certain style of music or playing technique, following your own interests will help to keep you motivated.