May I suggest concentrating on playing scales first, your fingers have to get used to putting enough pressure on the strings that the notes are not muted and you can slowly build that strength by playing individual notes first :)

Also the perspective that helps me learn an instrument is that it's like you are developing a friendship with your instrument. One day you will be so comfortable that playing an instrument would feel like talking to a friend but making a friend takes time :) You have to have some awkward conversations first, feel like this is going nowhere and someday it won't feel awkward anymore and you would pick up your instrument and it would understand you like a friend does :)

I used to play a guitar and now often spend my time playing the mandolin so this perspective has definitely helped me, maybe it would be of some help to you too :)