The only skill that is really needed in life is the ability to learn.
Having the confidence that no matter what it is, you can put the time in and learn how to do whatever it is, know about any subject, work any job, or create anything. You can learn sales, or how to be resillient, or how to touch the soul, or how to be a great father/mother/child/teacher/businessperson/what have you.
Autodidactism.
The way to becoming a polymath - a renaissance man - is through this one and only skill. And anyone has the ability to learn how to learn.
Sure - it may take you more time than another person to learn how to program, or write well, or whatever - but at the end of the day, if you put the effort in, you have an internet connection, and you have some fortitude, it is possible to learn anything about anything.
It is why I truly believe that the only skill that matters is the skill of learning - and then taking the learning and applying it.
Read a lot.
Try many things in many different disciplines.
Work jobs not because you have to, but to garner further skills that make you irreplaceable in the future.
This is the way forward.
Focus your time on this, and you will not recognize yourself in 90 days time - be distracted, and you will be exactly where you are right now.
Choose to learn and to grow always, all ways.
You will be astounded at the person you can become.