Let’s start at the beginning. It looks like your stance is too closed. The ball of your rear foot should line up with your toes on the front foot. A slight forward direction your front foot should also point fwd. We start all shooting with stance. It’s important and shouldn’t be overlooked.
Next thing you need to know is shooting should be done skeletally. You’re shooting off muscle it seems. You’re bow arm appears isn’t locked into your socket. Muscle gets tired and changes things. T up we say. Also not using back tension, that leads into other issues, If you were applying back tension your fingers would automatically move rearward towards your shoulder. That goes for compound with release as well. In fact compound and trad guys shoot almost the same. There’s very little difference.
Upon release you’re throwing your hand out as noted plucking/torquing string. I see you’re using an arm guard, hitting your arm may be part of your result. Not the only reason but I’d bet a good part of yours. Back tension shooting would help that throwing hand out thing. With the follow through you also need to remain in your shooting stance as the arrow hits target not collapse, drop your arm, move or fall apart. There’s more but realize none is very far off. Easily fixed. Best not to practice mistakes and develop muscle memory for them. Remember too the difference in compounds is everything they do tries to remove you from the equation. With styks everything you do changes something. Hold an arrow without a bow at full draw aiming at target. Move nock end just 1/4” up, down, left, right. You can see how it’d be really tough even with that slight deviation to put the arrows together. Now add multiple issues all at once, just intensifies things. Let’s help you get all that right so you can enjoy your shooting and be consistent and accurate. We’re glad you’re here and it’s important we help everyone we can. I left my number on your pm if you’d like some help.