Don't talk constantly every day, it can wear things out and cause you to get on each others nerves. along with that, don't focus entirely on her, balance being with her with hanging out with friends or stuff, it gives you more to talk about.
watch a movie together, it gives you both something to do, things wont be too awkward and you'll bond a little more.
if you both feel enough of a connection, ask her to leave the cam on when she goes to sleep, it sounds bad and kinda creepy but if theres enough of a connection she'll appreicate it, know you care and you'll get serious brownie points.
also make sure its a realistic relationship and that you have a chance of seeing each other, if you cant for a long time, dont bank on the relationship lasting.
you have to put effort and care into every day you talk with her, a random guy just needs a week and he can swoop her off her feet and steal her.
to be honest, if theres no chance of meeting, just end it.you'llonlyhurteachotherifyoukeepitgoing.