Looking for suggestions/help! I throw about 300'

[Birdie2Bogey]

I've been playing Disc Golf for about 3 years now and regularly since COVID hit. As stated in the title, I throw a Mamba about 300' regularly and want to improve my form to get more distance and consistent. I've watched a lot of videos to help improve your form and have found limited success. Most recently, I've worked on my pullback before snapping through and making sure I get a good reach back.

Your feedback and suggestions are much appreciated!

Video: https://drive.google.com/file/d/1rDCa62AYCKWqWLKXJMf1ji_vO7g_Cqec/view?usp=sharing

 

[sidewinder22]

You are hugging yourself instead of the disc. Need to turn your shoulders and head further back to keep your upper arm from collapsing against your chest.