I worked for half a year in 2019. Now I've been studying since October and now I want to file a tax return for 2019. Can I now drop off my laptop that I bought in October?
Didn't know that it is possible. If wrong, you can correct it.
The laptop must have been used for the activity you used to generate your income. But you didn't tell us about that.
After all, you don't get any money for being a student.
From the time it is pretty impossible that you used it for your employment.