Yes, there are going to be challenges. Some minor, some major. Some will be inconvenient, and some will downright hard and painful. Still, others will be fun and enjoyable like a puzzle to be completed or a game to be won. Some of the challenges you can take on alone while some will require help from others. Ask for the help when you need it and offer the help when others need it. With each challenge you complete you become more competent and therefore more confident. You will look back one day and many of those mountains will indeed now appear as molehills. Yep, you are awesome!
I believe in you!