Yeah, I thought this could be the cause. Hope she gets better soon. You seem to be very strong, keep it up.

My home is a rather big village (ca. 8000 people), but there is not many opportunities when it comes to socializing if you are alone (only very few family events). It is located close to the country's capital, but I hate that city. And to make sure, I'm not the type of guy who would go to bars in the evenings. Also, it is difficult to get to my village after 10pm.
The town where I study is also relatively big adn I really like it. On the other hand, I tried to look for some events (meetup and so), but there were only events for specific groups of people, usually based on their career. My faculty has one event per semester and that is presentation of their industry partners. The whole univrsity offers just book and debate club (both activities I'm not really fond of).

With the concerts, this was not a one time experience, it happens regularly. Now, I'm considering going to a concert in two months. I'm not sure if I want to go with my father (appart from the fact that he is not sure of going). I don't think there is anyone who I know who would go and I'm not sure if I want to go alone. It is one of my favorite bands and I saw them last year so I know they have great concerts, but it is in a different town so I would have to travel and I must say it's not my favorite city (not the capital which I mentioned above).

Exactly, face to face contact is a must. I'm considering finding some people online who I could meet in real life. But I must say, that (according to my experience) people tend to be unpleasantly different online and face to face. Also, I tried to find some groups online, but nothing local appeared so no chance for offline meetings.

About the hand, thanks. We will see. I have that appointment in three weeks, so I will have to endure more than I expected because also then, I need another appopintment at the first doctor for treatment and I can't make an appointment now because she has days off. I'm very curious how my math analysis lessons will go because that are just the lessons where writing on computer is a very bad idea and I need to write down equations and take some tests during the semester. And yes, writing is definitely unpleasant (sometimes painful) now.