Cannot open top two Harddisk Bolts

Spectra_7

I bought an Acer Predator Helios 300 laptop 2 years back. It was running great until overheating issue started, where temperature reaches 95° C which creates horrible stuttering in games. Even in games from 2009.

So I decided to clean my laptop from inside. I bought all the necessary tools online like Screw Driver Set, Isopropyl Alcohol, Pry Opener, Thermal Paste.

I was able to open reset of the bolts. But the problem is I couldn't open the top two bolts holding the SSD (pics below). The bottom two bolts I was able to open, but not the top ones.

Can someone help me how to open those bolts?

Pics:

Specs:

Model: PH315-51

RAM: 16 GB

GPU: GTX 1060 6GB

GPU Drive: Nvidia 399.24

CPU: i7-8750H @ 2.20 GHz 2.21 GHz

OS: Windows 10 64 bit

Thanks.