This build is gonna be scrapped. I don't know enough yet to safely launch this rocket. I don't want it to go horizontal and become a missile hahaha, ive got to learn a bit more about stability. Sorry, guys.
Time out! No need to throw the baby out with the bath-water. It's much easier to make an overstable rocket stable than an unstable rocket stable.
I'm not a big Open Rocket fan, partly because most of my rockets have square cross sections and don't lend themselves to sims, and partly because I am lazy.
I am pretty decent with Mind Sim, although only a Padawan to
@Daddyisabar full Jedi powers.
Your bird without the canards has tail feathers that are much bigger than needed. It is OVER-stable, which isn't always a bad thing, just means don't launch it in winds over, say 5 mph. If you live in Amarillo or some other place that's usually windy, that's a problem, but maybe you have some good low wind days.
You added the canards, those will definitely reduce your overstability, maybe too much, here's where a swing test or Open Rocket can help you out. Remember in either case to account for the motor (or MOTORS) you plan to fly, and the chute and the wadding.
Options for optimizing. Ditch or trim back the canards (they only add drag, not a big deal, you aren't going for the Karman line on your first (or 100th) flight.
Trim back the tail feathers a bit (here is where a sim program helps you get there faster.) Take a look at rockets like the Black Brandt or WAC Corporal, they can give you a good idea of approximate fin proportional size, YOU get to pick the shape.
MOST people build a few kits before getting creative, but your first scratcher is still in the ballpark.
as long as you are safe and having fun, you are doing it right.
Straight trails (unless you go down the asymmetric fin road, in which case, I wish you straight trajectories!)