Help me get a new laptop for school!

Hello GoGetFunding! I'm a first year student in Singapore and studying at a local polytechnic. I'm taking a course in infocomm security which costs around $1400/semester. My dad is unemployed, my mum is working but she earns 1.2k a month and has to pay the electrical and water bills so she is unable to help me pay the fees. She is using up her CPF to downgrade our apartment. I currently work part time at a retail store, however i have around 5-7 hours of school a day so i only work in the weekend, saving up just enough to pay off a semester and have my own eating allowance, left with no savings to get a new laptop. I almost got dropped off from school because i dragged the school fee due date too long.

I got my current laptop from a subsidy programme for $450. It is a cheap Lenovo laptop, win 10, 4GB RAM, however after installing the necessary programming apps for my modules it's been running extremely slow and getting very hot.
I still have 2 years of schooling left and this laptop won't last. I found a laptop online that i believe will suit my course's needs so it would be very kind of you to help me get it. Even a $1 donation helps.

This is a link to the desired laptop, i'm unsure if you can view it if you live outside Singapore: https://www.courts.com.sg/acer-sp314-51-57xz-grey-...

This is the link to my paypal: paypal.me/lapidot