Local(Buffalo, NY) help learning valve adjustment

[Davinhg]

I recently purchased a 2009 Suzuki gs500f as my first bike and I've been trying to do basic maintenance myself(some fluids, filters, Rebuild carb, basic stuff). I feel like it's starting to develop a louder valve tapping noise and when I was syncing the carbs I blipped the throttle(unwise as I learned the hard way) and the right carb backfired from the intake, which I guess could be due to one of the valves not fully closing? I'd like to try to adjust the valves myself and potentially do the cam chain or cam chain tensioner if needed, but I've read that it's a longer job and easy to mess up. Is there anyone in the area who might be willing to show me their ways for a few six packs or something? If not I'll just attempt the job myself but I'm really interested in learning how to work on bikes and would love some mentor like guidance. I'm a 20 year old and think I would really enjoy working in a shop.

I've attached a link to a video showing the noise. I really have no idea what I'm doing but would love to learn.

https://youtube.com/shorts/gMjo7w2R13w?feature=shared