I got into SE shaving after about the same number of months ... DEs sat around unused and so at maybe a year, I got rid of the bulk of them. Just recently, I got moved on the last of them retaining only my very first vintage purchase (a Gillette 'Old' which I have had replated), a lovely Gillette Black Beauty, Gillette Bostonian and a Personna with a curious head that ensures you use the correct angle. Oh, there's a Wilkinson Sword 'Sticky' somewhere, too, but I think I'll let that go ...
In a word, I just don't like DE shaves. It was a huge improvement over my cartridge shaves, but I think that was more to do with process, technique and simply slowing down. I've gone back to cartridges to some degree, re-discovering the Trac II and enjoying Gillette's latest single blade incarnation: the Guard. In terms of cartridges, looking back, I used to get perfectly good shaves with cartridges and disposables. For me, it's the closeness of the latest, greatest cartridges which do not work out well for me - ingrowers and irritation, as I have oily skin. Single and twin blade cartridges and disposables work out fine.
But yes, SEs ...
What a shave! I love how SEs shave, be it Ever Ready and GEM, those curious Wilkinson Sword Empires, there's Autostrop Valets, older, lather catchers from various houses and all manner of weird and odd from over 100 years, readily available now we live in a global online world. I like how SEs shave, I like the results and I like the regrowth - for me, that's paramount.
Since SE shaving seems to have caught you, yes, move on your DEs and blades. I've been chucking a pack or two in with sales and so I'm left only with a small number of DE blades: Sputnik, Feather and some vintage Gillette. Every now and again, I'll no doubt have a DE shave. I'm sure you will, too, so hold onto your favourite blades.