Just two cents from the peanut gallery and long time geek...
Bite the bullet and go to Windows 10. Yes, there is a learning curve. But once you've learned...and you will, sooner than you think with a little effort...you'll have the best of both worlds.
Win 10 does a good job of looking like 7 if you want it too. But 10 allows so much more flexibility to make you PC look and feel exactly like you want it to. Quick boot ups. Better performance. Simple apps to do almost anything without the complexities of full-blown application installations.
Different? Absolutely. And 'different' can be a real pain for a while...been there!
But the key phrase is 'for a while'. With a little effort, it will be a fairly short while. Then it's all good.