Laptop to desktop

[NLamki]

Budget (including currency): Idk

Country: Oman

Games, programs or workloads that it will be used for: 

Other details (existing parts lists, whether any peripherals are needed, what you're upgrading from, when you're going to buy, what resolution and refresh rate you want to play at, etc): 

Hello, so yes I have a gl502vs, it has been serving its purpose well. But, recently I've decided to move on to a desktop, after much budgeting and planning, I decided that it would be much better if I can turn my laptop (Model stated earlier) into a desktop. I've seen some pictures of people doing this but I'd like if someone could write down the steps for me as I've never built a PC before. Also, will I need to add a power supply? As I'm planning on adding more (RGB) fans, and more RAM. And about the RAm, does it have to be the same model or could I add a " Team T-Force Delta RGB 8 GB DDR4-3000   2 x 4GB) I would've gone for more memory but my laptop already has 24GB of RAM. Also, recently I upgraded my HDD from 1tb to 2tb. But because of the pandemic, I couldn't get an internal hard drive so I put in an External hard drive inside the laptop, its been going fine but will this damage my PC?

I appreciate your time, tips and suggestions!.

Thank you.  

[NLamki]

3 minutes ago, NLamki said:

Budget (including currency): Idk

Country: Oman

Games, programs or workloads that it will be used for: 

Other details (existing parts lists, whether any peripherals are needed, what you're upgrading from, when you're going to buy, what resolution and refresh rate you want to play at, etc): 

Hello, so yes I have a gl502vs, it has been serving its purpose well. But, recently I've decided to move on to a desktop, after much budgeting and planning, I decided that it would be much better if I can turn my laptop (Model stated earlier) into a desktop. I've seen some pictures of people doing this but I'd like if someone could write down the steps for me as I've never built a PC before. Also, will I need to add a power supply? As I'm planning on adding more (RGB) fans, and more RAM. And about the RAm, does it have to be the same model or could I add a " Team T-Force Delta RGB 8 GB DDR4-3000   2 x 4GB) I would've gone for more memory but my laptop already has 24GB of RAM. Also, recently I upgraded my HDD from 1tb to 2tb. But because of the pandemic, I couldn't get an internal hard drive so I put in an External hard drive inside the laptop, its been going fine but will this damage my PC?

I appreciate your time, tips and suggestions!.

Thank you.  

Should've mentioned this too but I want to but the laptop motherboard and all its (stuff) in an actual desktop case. So could I use a Micro atx or only ATX?