How do I know if I will be good at writing music or enjoy it if I don't have the instruments or money to buy instruments? Whenever I try to imagine a melody in my head, I always fear that the melody would be heavily influenced or even a straight rip-off of what I have heard in the past subconsciously without me realising. Do you experience this?
you're just gonna have to try some things. on one end of the spectrum, just do what feels familiar, and it may be similar to things that already existed (which is not always the biggest crime, considering 95% of music is very very similar to other music that existed before in many ways). and the opposite side of the spectrum is try things that are so outlandish that they are guaranteed to be different, even if they might be totally insane and not good. chances are you will stumble upon something good anyway. but either way it is important to try many many different things, on both sides of the spectrum, and you will very quickly learn how to fly the plane