Alright, I tried it out, and it had a few issues. I corrected some of them here. Just to be clear, I'm gonna criticise a few things here, but I genuinely mean this only as advice and not an attack.

Your main issues were that you had a load of dead weight in the nose, your CoM and CoL were really far apart, and your pitch control surfaces were waaaaay too big. This made the plane very unstable when under pitch, because it was trying to turn much harder than it was actually capable of. I fixed these things in the one I linked.

Now, when I fix planes on here, I always try to keep the appearance the same. However, if you want to change it, you could do a few other things to further improve the handling.

First off, move the engines a bit closer to the fuselage. At the moment, having such heavy engines so far out is causing a lot of weird roll behaviour. It's kinda like trying to move a door by pushing it near the hinge.

Larger main wings would also help. It doesn't have to be much, but a lower wing loading generally leads to nicer handling.

I hope all this helped, and don't hesitate to ask questions.

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