Solved My First Custom PC and I Think I Did Something Wrong

Hello!

Almost a year ago I bought parts and partial computer assembly service with it.
I was trying to get a soft-introduction to PC building as well as getting a new strong-enough computer for gaming and work.

From day 1 my computer was having issues and I'm not sure why, though I have a hunch.. the store I bought the parts from are not very helpful.

I picked the following hardware:
AMD Ryzen 5 3600 Tray
AMD Wraith Spire Cooler no LED
Gigabyte B550M AORUS PRO
DDR 4 16G (8GX2) 3600 CL18 DARK Za TEAM
ANTEC NX240 Case
CoolerMaster ELITE 600W - V3 - PK600W
PowerColor RX 5700 8G GDDR6 AXRX 5700 8GBD6-3DH/OC
SAMSUNG 970 EVO Plus SSD 2TB - M.2 NVMe
(+ 3 More SSDs connected normally through the cables unlike the NVMe)

The store had assembled everything but the RAM, SSD and Graphics card.
and I think I screwed it up with the graphics card, the computer takes at least 2 consecutive presses to bootup (often more), it will never wake up from sleep and recently it started to shut down suddenly.

Is it my PSU or did I just not connect the graphics card correctly? that card is quite large, and I think I didn't connect it right but not sure how to figure out what the problem is.

I'm a bit worried to open the case again in fear of screwing something further, but I'm also worried about the expense (and increasing issues) of taking it to a technician to fix

Any thoughts or tips for me?

Thank you for your time.

Oh thank you thank you thank you.

I can boot indeed,
I did not overclock anything afaik.
I think the M.2 Samsung PCIE Gen3x4 2280 PCIe M 970 EVO MZ-V7E2T0 2TB - on the box the model number says MZ-V7S2T0 so it matches
I have windows and the OS is on the M2.
I tried disconnecting all other drives, it didn't change much.

I sadly didn't fully understand either image you show me here, but I understand that 650W only for the graphics card with a 600W PSU is bad. that's simple math right there.

image of my entire case + a close up to the RAM slots.




Thanks again @PeterOz , I'll wait for @phillpower2 to recommend me a PSU and but it immediately.

It's all in Hebrew so I wouldn't mind if you send me a just a name/link in a store like amazon and I'll track it down and order it.

Closest to my house are these two:

Thank you so much!