and I want things to go well, I don't want to mess this up
This is where you may go wrong in anticipation and expecting success. The love you have is yours that you have developed in you for her. Similarly she too would have developed a feeling which may or may not translate as love
So relax and settle well with in the friendship with her. Don't commit to things and make promises that you may find hard to keep.
Study her behaviour and her thoughts and make her also seek you. Don't act like a stalker by calling her often or messaging her. Never ask
what are you doing?Better to ask what's up!.
Be independent and give her the independence. Keep your calls purposeful .. don't hang on the phone when you run out of content. Instead disconnect and call later so she knows you value your time and hers too.
Short calls for 2-3 minutes is the best.
In short, don't thrust your love on to her and instead let her also develop her love for you
