My laptop

Laterly my computer has been so slow! Like I have to wait for ages for it to open e.g. Spotify... I couldn't understand what was wrong until yesterday evening... You know I downloaded a virusprotection plan and everything but it didn't help. And so then yesterday this little window popped up that said something like "You can't do this because your startup disk is full."
I was like "wtf is a startup disk?!"
But now, after a little help from google I am slowly getting back some space on my laptop. I looked through everything I had and deleted what I didn't need. Then I cleaned my trashbin, and well... It's still not done because I had over 85 000 objects to delete :O Idk what happened there.....
Anyway now I only have 15 000 objects left to delete :) GAHH hate when these kind of things happens!