There is really no need at all to do a step mash, especially a protein rest, with that grist. You're not only making more work for yourself, it could be detrimental to the head and body of the beer.
That is sage advice per my experience.
I get 3.2% ABV per your gravities. That's a typical session beer and can get you fairly buzzed in no time. If you need it "stronger" then you might add some Everclear- don't do it blindly, but do a separate graduated taste test. You'll need some sweetness to counter the added alcohol but 1.018 might work in your favor in this case.
Or leave it as is and enjoy. Looks like it's a decent beer already. A learning experience.