First of all, the fuse is just along for the ride. How it flies is based on the horizontal stabilizer (stab) being parallel with the wing and the vertical stabilizer (fin) is 90 degrees to them both.

With the stab and fin already glued in place you can accept the out of whacked-ness and just trim for it (like JD suggested) or you can correct it by repositioning the fin so that it is 90 degrees to the stab. Leave it for now. You can answer this question after you've flown it for a while.

How about the wing? Are the wing and stab parallel? Put the plane on a table / bench high enough so that you can step back across the room and easily sight the leading edge (LE) of the wing and the LE of the stab. Are the tips of the stab equally above or below the wing? If not, you can add a shim between the wing and the wing saddle on the low wing side to bring them (stab & wing) into alignment. Parallel? Cool, finish off the shim.

Then, go fly with you local instructor ...

BTW - I'm a student of Dean Pappas (Trimming from the Ground Up - vol 1, 2 and 3 - pdf files easily downloaded) and believe that the newbie (or any flier) doesn't have to jump thru hoops to deal with the idiosyncracies of a particular plane when ya don't have to ...