Since I pretty much lost my sleep and I have no one else to talk to about this here I am, tried to keep things short, forgive me for my failure

First time I met this girl was 5 years ago, but we only started chatting a bit 2 years and half ago, at that time the pathetic loser of me was interested in another one, reason why I loosely closed conversation with her (started responding with short sentence to let her now I didn't wanted to keep the conversation, and apparently she took the hint and stopped doing it)

Last december, after 2 years and half I casually met her in a close town and we talked a bit, few minutes later she gave me her number and we started again to chat a bit, from then on I started regaining interest, she lives roughly 600 miles away and at that point I had not enough confidence to ask her out.

In April, 4 months later, she planned to have a short vacation here (she lives and study away from here but she has another house few miles away from mine). Few days before she comes, I accidentaly knew from a friend she was texting also another guy (which knew before starting texting me again). At that point my interest for her skyrocketed and the fear of loss made me able to ask her out, turns out she was okay with it.

Which is basically what we did, we met few times but I honestly was not even able to hug her, we're both pretty anxious and it was impossible to take the next step, also considering she was texting another guy.
As I tried to talk about the other-guy issue, she opened a bit and told me her first and only relationship ended with her being cheated, her parents are separated and that she will take all the needed time to start again a new one.

She then got back home and started working in june, she also had exams and this led to me being able to receive just 1-2 message a day at max from her. Even before this, she never seemed very interested in texting, I generally received few (detailed) replies during the day and was cool with it.
I openly told I was interested in her, and she told she's also interested, but doesn't know me enough to say how much. Which is perfectly reasonable since in 5 months we collected no more than 4-5 hours in total togheter.
Pheraps not being able to hear from her or me closing a bit and not talking about the issue, I had the worst summer of my life just waiting for her to finish work and come back there in september, as she planned. The thought of me trying to close conversation with her 2 years before was literally killing my sleep.
Three weeks ago I found a bit of bravery and asked her if there was any news about our context and if she was still texting the other guy, with big surprise she told that after thinking for long, she decided to close contact with him since "I have clearer ideas now"

Out of the box, in september 19, exactly one week ago I got a message from a friend saying we were all gathering to go out, as I stepped inside their car I saw her and her best girl friend, which no one of the group ever saw before (pheraps she decided to take her with us to know me and ask her advices? God knows)
She didn't told me we were going to meet that night. Neither that she arrived here for vacation. I was in complete panick inside but managed to go well and have somewhat fun.

She'll stay here until 30 sept, then flies to Dublin and get back here oct 6 till 15. 2 weeks in total without counting time spent in Dublin
Then I basically asked her out sept 21 and 23, unfortunately I was not able to spend more than 2 hours in total with her and basically nothing of relevance happened. Last time I met her, I subtly said she should decide when to meet again, since I didn't wanted to be intrusive, 3 days later she text me If I had any plan for Tuesday, 29. Pretty ridiculously far for my agenda, she knows I wanted to see her more often, but told me today one of her uncles has health problems and she want to spend a bit of time with her. Perfectly reasonable, but I didn't waited 5 never ending months to see her 4 hours in total in two weeks of time she's going to stay here.

What should I do next?
I can't wrap my head for my next move. I'm pretty damn sure she could find at least one hour to spend with me even in the busiest of her days (and of course I can't tell this), yet again asked me to do a walk one week from the last time I saw her.
I'm also pretty sure she likes me, but we spent less than 10 hours togheter in 10 months.
I can't study, I can't sleep. I'm barely able to focus on anything else than this situation, which is killing me