The voices of self doubt often scream "you can't do this".
These voices will always be there unless you focus steps. You may feel like you will never see the finish line; however, today you can pick up a book and read chapter 1. You can listen to a podcast or work on a toutorial. Do these things everyday and eventually you will get there.
We all walk with out own story. That perspective is uniqly yours. This unique perspective allows you to see things and crate things that have never been done before.
Be inspired by those who you see doing amazing things in your field. Ask for help but remember that you are valuable and your place here is important. Remember they were once where you are. They took each step one at a time too.