This answer applies to anything you want to do but find difficult at first.
You need to get and stay in the right mindset which involves stop thinking about the fear of failing and imagine an end result of what you are trying to achieve e.g. Playing your first song to family and friends
Stay motivated to practice by setting smaller but achievable goals like remembering the 3 chords in this song or changing quicker between two more difficult chords, all requirements to playing that first song.
Everything we want to do and do well requires practice, no ifs and buts with this one. Ask anyone who is good at something why and they will all say the same, the time spent on purposeful practice. There is no such thing as just being gifted and not having to work at something. The ones that look gifted gave a history of hard work and graft devoted to realising their dream and opportunity is available to everyone, if you go and look for it.
So when you say to fulfil your passion is something difficult or hard then you are right, The thing that makes it harder or even impossible is not rising to the challenge.
I have an old guitar that i asked a friend to paint with the words “This is the Life” to remind me how good i felt. He came back with “This is Not the Life” on the front and “This is Just the easy way” on the back. Think about it? It can be interpreted in a number of ways but for me the one that stood out was that it is easier to accept 2nd best for an easy life than it is to strive for what you really want, but the rewards are well worth the effort
Something is only hard if you think it is! - Change your Habits and Be Remarkable!
I hope this helps