Help me, save this semester

Well, the reason for this campaign is to raise enough money, in order to repair my laptop and gain access to certain files that will prove to my teacher that I indeed finished the assignment he left.

The reason on why I'm resorting to this site, lies on the events that happened 2 days ago; on my way home from the university, (I conmute through bus) as I was getting off the bus (unfortunately I was the only person that got off) there were some shady looking people near the place I got off(I just took a glance), I didn't give it a second thought and continued my way home; and so almost 4 minutes had passed and I'm walking near some trees. At that moment, in front of me, a man walks out from behind a tree and starts to run straight at me, I didn't thought he was going to harm me but then out of nowhere he got in his hands an iron rod, the guy was almost about to hit me so I quickly used my backpack as a shield(it had books and my laptop); as I defended, the man knocked me with his foot to the ground and started to kick me and deliver blows with his rod at me.

While down i got to see what was happening behind me, the shady guys I spoted before where aproaching; just so you know I'm not exactly strong, yet I'm neither weak nor a coward, I wasn't going to let myself be abducted or anything, I had to escape. So I confronted the man with the rod, it took me a lot of beatings and courage but I was able to disarm and knock him out. Just in time to get away.

The aftermath, was a broken cellphone, a laptop with no functional keyboard and a damaged display, and a pretty messed up body.