If you've made plans for a date with her i'd confirm it the day of with a call or text saying something like "looking forward to seeing you at (place you made plans for) tonight" or "I'll pick you up around blah blah time " Don't say things like "Are we still on tonight?" Since if she's indecisive it'll give her more of a easy way to back out even though part of her wants the experience with you and you end up missing out on a nice time out together. As far as she's going through stuff right now that could mean a whole bunch of stuff and I wouldn't concern yourself with it. Her friends can help her out with that stuff its not your job. Your job is to give her a nice distraction from whatever is going on and bring some joy to her life in one way or another. Its still in the early stages of dating so don't focus all your energy on her. Always keep looking for other girls otherwise it'll take you a lot longer to find good worth while relationships and the bad ones will drain you mentally and physically.
ps: i'm tipsy and exhausted from going to a concert tonight so who knows if any of that made sense