Dell 1525 wont start up

(Im not computer savvy so please explain how to fix my problems as if you were teaching a toddler to ride a bike). Greetings, I am experiencing problems with my Dell 1525. Today at around 8 AM, I turned it on and started surfing the web. After a bit, I noticed my desk was a bit untidy, so I decided to clean it. In the process, I accidentally dropped a large textbook onto the part of my laptop above where my hard drive disk is located. I was a bit worried that the drop damaged my laptop, but it was working as it did before I dropped a textbook on it. I continued to surf the web, nothing happened. After around 2 hours, my entire screen froze and it turned white because it wasnt responding. My laptop then turned off, so I tried to turn it back on it. Everything seemed normal, until it took me to Startup Repair. I waited 10 minutes for Startup Repair to do its thing. When it finished, it said it couldnt repair my laptop auromatically. I pressed Finish and restarted my computer. I tried to run Startup Repair again, and it didnt work this time either. I then saw something that said "view advanced repair options" or something along those lines. I clicked it, hoping to restore my laptop to factory settings. When that option wasnt available, I thought "this is strange, because it should be here." I restarted my laptop, and pressed F8 before the Dell logo popped up on my screen. It took me to Advancded Boot Options, where I select the Repair My Compiter option. The screen went black for 5 mintues, and then it took me to a screen with the Windows backround and my cursor. Nothing happened at all; I was able to move my cursor around, but that's all. I restarted once again, and selected Start Windows Normally. I only got to a blank blsck screen. When I tried to use Startup Repair, it took me to te screen with the cursor and Windows backround. These 2 screens were the farthest I could get to, so now im here writing this wirh my tablet. I would thank anyone dearly for helping me fix my laptop, because it's extremely important for school. I use this to research, write essays, and much more. I dont think my parents woild want to buy me a new laptop, so please help me.