A few weeks ago Timika Peterson, The Few Chosen & Stereo did a podcast on "Impostor Syndrome" - a psychological pattern in which an individual doubts their accomplishments or talents and has a persistent internalized fear of being exposed as a "fraud".
When God calls us to do certain things we don't always feel equipped to do the job.
Hebrews 13:21 TPT says "may he work perfection into every part of you giving you all that you need to fulfill your destiny. And may he express through you all that is excellent and pleasing to him through your life-union with Jesus..."
God chose you. He equipped you. You will always have everything you need to do what He's called you to do.
When receiving certain blessings or being presented with different opportunities, it can be easy to wonder how or ask "why me?" However, Instead of asking why me? You should say "thanks God for thinking enough of me to use me or trust me with this opportunity, this blessing, or this gift." Even if you don't feel like you're ready or even the right person, trust God. Trust His plan.
If He trusted you enough to open the door, you should trust Him enough to walk through it.