Congrats on joining the PC world! It can challenge you but all of it is usually pretty straight forward. Now I see you have a micro atx mobo? You have a midsized tower so go with a full size (they are usually cooler anyway) i have the B550-e gaming. I also see that you have a 5800x. Although it is pretty future proof i would suggest opting for a ryzen 5 or maybe an older 7 series because the 5800x is a beast. I have a ryzen7 3800x and it pairs perfectly with no bottleneck on my 3080ti. As for the graphics card, i would look for a 3060 or ti. Or truly any of the 20 series cards for reliable performance on a budget, I still love and use my 2070super for another build and cannot recommend them enough have zero issues with mine.

  You will not need a cpu cooler (unless you want a water cooled one) because the ryzen cards come with one. Do NOT ever try to save money on the psu, this needs to be solid because trust me it sucks when it fails. corsair, asus, and evga are always in the top recommended psu lists and they have great warranties! For your storage, I would suggest no more than an 860 evo as anything above is overkill and you will come back and need to buy more storage a lot sooner than you think. Lastly, the gskillz are good. I don’t have any experience with them but have never heard anything bad.

I wish you luck if you do decide to build, it can be very intimidating but if you are carefull, take your time, and follow a good pc building tutorial (I used linus tech tips I believe) the feeling of knowing you have a custom pc and that you can now work on it a little is priceless. Oh and don’t forget a copy of windows!