High School Student Needs Help!

The new Dell Inspiron 7559 might well just be the thing youre looking for...

Here's Linus giving you a good look at it, as well as some of his thoughts:

https://www.youtube.com/watch?v=jJPQfWCuxAo

The iPad Pro doesn't have editing apps anywhere near as good as that of MacOS or windows. You'd mostly be paying for the tablet form factor.

The 13" 2015 Macbook is also a very poor choice as well. It's performance is really poor.

https://www.youtube.com/watch?v=NSQjfXtiICo

Unless you want a very unpleasant experience, windows is your only real choice here if you want to stick with a laptop.

I prefer PCs myself, but if you're into making video, processing photos, or doing graphics arts, I usually recommend people stick with the Macbook Pros. Apple calibrates their screens to cover 100% sRGB color space (range of color saturation). Most PC laptops only hit about 80% sRGB, and the Macbook Airs absolutely suck at around 60% sRGB. There are several PC laptops which can hit 90%-100% sRGB (including that Dell Inspiron posted above), but you have to really dig for reviews to find them. The two sites I've found which consistently measure color gamut are mobiletechreview.com, and notebookcheck.net. You have to be a bit careful with the latter as some of their % sRGB ratings are in Lab color space, while others are in CiE. The percentages are not comparable - Lab emphasizes granularity of intermediate tones more than range of color saturation.

Also understand that high-PPI displays like Retina are more important on Macs than on PCs. PCs use something called subpixel rendering to make things like fonts appear sharper on the screen.
https://www.grc.com/ctwhat.htm

Since the Macs are widely used by graphics and layout professionals, Apple opted not to use subpixel rendering. It makes things sharper on a lower-PPI screen, but does so at the cost of forcing fonts to align with the subpixels. That's not acceptable for a layout professional, where you want the font to appear exactly where it's supposed to even if that makes it blurrier. Consequently, if you hook up a Mac and PC to the same 1080p monitor, the PC's fonts will appear sharp while the Mac's fonts will look like crap. The only way to improve sharpness on the Macs is with a higher-PPI screen. (Tablets suffer from the same problem because subpixel rendering does not work in both portrait and landscape mode, unless the screen is Pentile.)

On the gaming front, the Macbooks simply aren't very good for it. Apple dropped the dedicated GPU from MBP 13 and uses the Intel Iris 6100 instead. It's slower than a nvidia 920m. Even their flagship MBP 15 uses a run-of-the-mill 950m or low-end (for gaming) 960m. These are older GPU cores and are basically overclocked 850m and 860m. If you want decent gaming, you pretty much have to go with a PC.
http://www.notebookcheck.net/Computer-Games-on-Laptop-Graphics-Cards.13849.0.html?type=&sort=&deskornote=0&or=0&search=&month=&benchmark_values=&gpubenchmarks=0&professional=0&archive=1&dx=0&multiplegpus=0&showClassDescription=0&itemselect_5965=5965&itemselect_6157=6157&itemselect_6158=6158&itemselect_6159=6159&itemselect_6220=6220&itemselect_5945=5945&condensed=0&showCount=0&showBars=0&showPercent=0&gameselect%5B%5D=368&gameselect%5B%5D=366&gameselect%5B%5D=361&gameselect%5B%5D=359&gameselect%5B%5D=355&gameselect%5B%5D=353&gameselect%5B%5D=351&gameselect%5B%5D=346&gameselect%5B%5D=344&gameselect%5B%5D=342&gameselect%5B%5D=340&gameselect%5B%5D=336&gameselect%5B%5D=332&gameselect%5B%5D=334&gameselect%5B%5D=329&gameselect%5B%5D=324&gameselect%5B%5D=316&gameselect%5B%5D=308&gameselect%5B%5D=297&gameselect%5B%5D=293&gameselect%5B%5D=263&gameselect%5B%5D=249&gameselect%5B%5D=217&gameselect%5B%5D=214&gameselect%5B%5D=208&gameselect%5B%5D=204&gpu_fullname=1&codename=0&architecture=0&pixelshaders=0&vertexshaders=0&corespeed=0&shaderspeed=0&boostspeed=0&memoryspeed=0&memorybus=0&memorytype=0&directx=0&opengl=0&technology=0&daysold=0

So you're going to have to compromise somewhere. Either give up gaming, or spend a lot of time finding a PC laptop with a decent screen, or give up size and go with a larger gaming laptop like the Inspiron posted above. If you want something Macbook Air/Macbook Pro 13 sized with gaming capability, look at the Asus UX303LB. I think it's out of production now but can still be found on sale. It's basically MBA/MBP sized with a great IPS screen (100% sRGB) and nvidia 940m. I included the 940m in the above comparison link.

http://www.notebookcheck.net/Asus-Zenbook-UX303LB-940M-Subnotebook-Short-Review.146312.0.html

If you want something like that without gaming, look at the Asus UX305LA. MBA-sized with an IPS screen, not the crappy TN panels Apple puts on the MBAs, and only $750.