As noted above never turn your TX off until the battery is out the plane.
With the weight distribution- what battery are you using? I found anything over 750mah sort of size made it much harder to balance despite building mine with the servos a little further back.
Also with smaller packs you can attach them to the bottom of the fuselage under the back of the powerpod if you really can’t get the weight back.
Another thing to look at is how far forward your power pod is mounted, too far out won’t help. Moving it back also means the battery can go further backward.
Before flying again try to make sure it’s almost perfectly balanced on the CG, just a tiny bit nose heavy, as it will fly much better balanced out. Watch the all up weight too, a heavy plane will be harder to fly.
A small weight right at the very tail end is worth considering as a last resort.
Another trick Hai-Lee taught me with the sport wing was to put a 0.5-1mm thick shim under the leading edge of the wing to give you a bit more incidence, which helped on mine, I went the full mm.