Need help rooting nexus 7 (2013)

I recently bought a nexus 7 (2013) model from amazon, its on 5.0.2. I used wugfresh root tool kit to update the drivers, unlock the boot loader and then root it. However when I rooted it I got stuck at the twrp screen and then the toolkit timed out. I clicked around and got to a screen with red writing (I tried to post a link to it but can't because I'm new here, I can send the link if needed I feel like it could be helpful.) I used my PC with the toolkit and plugged my nexus into my PC. I'm not sure what I did wrong or honestly what I'm doing for the most part. Any and all help is greatly appreciated. If more info is needed for me to receive help please ask and I will answer to the best of my knowledge.

I am not familiar to rooting so if you're going to try to harass me about not knowing anything please do not post. I'd like friendly helpful people as I have already stated I don't really know much about this. Thank you to anyone who can help I really appreciate you taking your time to help me